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26,551 first names, 70,620 last names, 333,585 kanji variations.
one of the best Japanese name search tools for your baby!
Sekaikun(せかいくん)
Kaichan( かいちゃん)
Secchan( せっちゃん)![]()
This name is considered unisex, but it's more commonly used for boys.
See the girls' version here.
This name is also used as a surname:
Sekai
In Japanese culture, kanji are characters that originated from Chinese script, and the meaning of a name changes depending on the kanji characters chosen. The more variations of kanji a name has, the more common it is in Japan. Conversely, a name with very few kanji variations is considered unique and rare. Below are the kanji variations for "Sekai," ranked by the total number of "Good!" votes.
聖 means "holy, saint, wise."
Imperial - Relating to the emperor.
Intelligent - Wise and knowledgeable.
Holy - Colors represent the variety and vibrancy of life's experiences. May your child's life be filled with beautiful colors and experiences.
Saint - Saints represent the highest moral achievement and devotion. May your child strive toward saintly goodness in their daily life.
Imperial - Being imperial represents a valuable quality that enriches character and life. May your child be imperial, letting this quality guide their path.
Intelligent - Intelligence represents mental sharpness, learning ability, and problem-solving. May your child be intelligent, using their mind to solve problems and help others.
恩 means "grace, blessing, gratitude."
Gratitude - Thankfulness for kindness received.
Mercy - Compassion and forgiveness shown towards someone, especially when punishment is deserved.
Grace - Grace represents elegance in movement and character, the refinement of a cultivated spirit. May your child move through life with grace, elegant in action and refined in spirit.
Blessing - Blessing represents conferring good, speaking life, and sharing abundance. May your child be a blessing to many, speaking life wherever they go.
Gratitude - Gratitude (感謝) is deeply valued in Japan, appreciating even small kindnesses and nature's gifts. May your child live with deep gratitude, appreciating every blessing life offers.
Mercy - Conflict teaches the value of peace and the courage to stand firm. May your child fight for what is right and seek peace when possible.
世 means "world, generation, life."
Generation - A Period of Time; an era.
Life - One's lifetime.
Society - The world, the people and the environment around us.
Succession - The passing down of something from one generation to the next.
World - The world represents the entirety of existence, global connection, and universal perspective. May your child embrace the whole world, thinking globally while acting locally.
Generation - Each generation builds upon the last while creating something new. May your child honor past generations while contributing to the future.
Life - Life is the precious gift, the journey of experiences that shapes who we become. May your child live fully, treasuring every moment of this precious gift.
Society - Circles represent wholeness, cycles, and completeness. May your child experience life's full circle with grace.
Succession - Objects serve purposes and remind us of what matters. May your child value things for their true worth and purpose.
界 means "boundary, world, limit."
Boundary - Boundaries represent limits, definitions, and healthy separation. May your child respect boundaries while building bridges.
World - The world represents the entirety of existence, global connection, and universal perspective. May your child embrace the whole world, thinking globally while acting locally.
Limit - Limits represent wisdom, boundaries, and knowing when enough is enough. May your child set wise limits and respect necessary boundaries.
Area, Range - Places hold meaning, memory, and the context for our lives. May your child find their place in the world and make it better.
世 means "world, generation, life."
Generation - A Period of Time; an era.
Life - One's lifetime.
Society - The world, the people and the environment around us.
Succession - The passing down of something from one generation to the next.
World - The world represents the entirety of existence, global connection, and universal perspective. May your child embrace the whole world, thinking globally while acting locally.
Generation - Each generation builds upon the last while creating something new. May your child honor past generations while contributing to the future.
Life - Life is the precious gift, the journey of experiences that shapes who we become. May your child live fully, treasuring every moment of this precious gift.
Society - Circles represent wholeness, cycles, and completeness. May your child experience life's full circle with grace.
Succession - Objects serve purposes and remind us of what matters. May your child value things for their true worth and purpose.
快 means "pleasant, cheerful, swift."
Pleasant - Pleasant - Agreeable and enjoyable; comfortable - carries meaning in Japanese naming tradition. May your child embody the positive aspects of pleasant throughout life.
Cheerful - Being cheerful represents a valuable quality that enriches character and life. May your child be cheerful, letting this quality guide their path.
Swift - Swiftness represents quick response, agility, and efficiency in action. May your child act swiftly and decisively when needed, never missing important moments.
Sharp - Sharpness represents keen perception, intelligence, and cutting through confusion. May your child have a sharp mind, cutting through confusion to find truth.
世 means "world, generation, life."
Generation - A Period of Time; an era.
Life - One's lifetime.
Society - The world, the people and the environment around us.
Succession - The passing down of something from one generation to the next.
World - The world represents the entirety of existence, global connection, and universal perspective. May your child embrace the whole world, thinking globally while acting locally.
Generation - Each generation builds upon the last while creating something new. May your child honor past generations while contributing to the future.
Life - Life is the precious gift, the journey of experiences that shapes who we become. May your child live fully, treasuring every moment of this precious gift.
Society - Circles represent wholeness, cycles, and completeness. May your child experience life's full circle with grace.
Succession - Objects serve purposes and remind us of what matters. May your child value things for their true worth and purpose.
改 means "reform, revise, renew."
Reform - To change for the better.
Renew - To make new again.
Amend - To make changes or corrections to something in order to improve it.
Inspect - To examine something closely in order to check its quality or condition.
Reform - Reform - To change for the better - carries meaning in Japanese naming tradition. May your child embody the positive aspects of reform throughout life.
Revise - Revise - To Alter; to modify - carries meaning in Japanese naming tradition. May your child embody the positive aspects of revise throughout life.
Renew - Newness represents fresh starts, innovation, and untapped potential. May your child embrace what is new while honoring what endures.
Amend - Straightness represents honesty, directness, and integrity. May your child walk straight paths of integrity.
Inspect - Objects serve purposes and remind us of what matters. May your child value things for their true worth and purpose.
世 means "world, generation, life."
Generation - A Period of Time; an era.
Life - One's lifetime.
Society - The world, the people and the environment around us.
Succession - The passing down of something from one generation to the next.
World - The world represents the entirety of existence, global connection, and universal perspective. May your child embrace the whole world, thinking globally while acting locally.
Generation - Each generation builds upon the last while creating something new. May your child honor past generations while contributing to the future.
Life - Life is the precious gift, the journey of experiences that shapes who we become. May your child live fully, treasuring every moment of this precious gift.
Society - Circles represent wholeness, cycles, and completeness. May your child experience life's full circle with grace.
Succession - Objects serve purposes and remind us of what matters. May your child value things for their true worth and purpose.
海 means "sea, ocean, vast."
Ocean - A great expanse of water; the deep.
Gathering Place - Where many people or things come together.
Lake or Pond - A large body of fresh water, usually surrounded by land.
Wide and Large - Describing something that is very broad and expansive.
Sea - The sea symbolizes vastness, depth of character, and the acceptance of all things. May your child possess the ocean's depth and vastness, embracing life with boundless capacity.
Ocean - The ocean represents infinite possibilities, mystery, and the connection of all lands. May your child have the ocean's expansive heart, connecting with all people across all boundaries.
Gathering Place - Place represents belonging, position, and having a proper location in the world. May your child find their place in the world, where they belong and can flourish.
Lake or Pond - Ponds represent tranquility, reflection, and the cultivation of inner peace. May your child find stillness like a pond, reflecting wisdom from peaceful contemplation.
Wide and Large - Width represents breadth of understanding, inclusiveness, and comprehensive vision. May your child have wide understanding, inclusive and comprehensive in their view.
世 means "world, generation, life."
Generation - A Period of Time; an era.
Life - One's lifetime.
Society - The world, the people and the environment around us.
Succession - The passing down of something from one generation to the next.
World - The world represents the entirety of existence, global connection, and universal perspective. May your child embrace the whole world, thinking globally while acting locally.
Generation - Each generation builds upon the last while creating something new. May your child honor past generations while contributing to the future.
Life - Life is the precious gift, the journey of experiences that shapes who we become. May your child live fully, treasuring every moment of this precious gift.
Society - Circles represent wholeness, cycles, and completeness. May your child experience life's full circle with grace.
Succession - Objects serve purposes and remind us of what matters. May your child value things for their true worth and purpose.
貝 means "shell, treasure, pattern."
Pattern - A design resembling a shell.
Palm Leaf - An abbreviation for Baitara (palm leaf); a tree name.
Shell - Shells in ancient Japan were used as currency, representing wealth, protection, and hidden treasures. May your child discover and protect life's hidden treasures, prospering in all endeavors.
Treasure - Treasures represent what is most valuable, worth protecting and sharing with loved ones. May your child recognize life's true treasures and protect them with wisdom.
Pattern - Patterns represent order, beauty, and the underlying structure of reality. May your child recognize life's patterns, finding order in apparent chaos.
Palm Leaf - Leaves represent the cycle of life, individuality, and graceful acceptance of change. May your child embrace life's seasons with the grace of a falling leaf, beautiful even in letting go.
宇 means "universe, roof, house."
Spirit, Intelligence - Spirit or intelligence, representing a person's capacity for thought and understanding.
Universe - Universe represents the totality of existence, cosmic order, and ultimate reality. May your child understand their place in the universe, connected to all that exists.
Roof - Roof - The Eaves; a covering - carries meaning in Japanese naming tradition. May your child embody the positive aspects of roof throughout life.
House - House represents shelter, protection, and the physical space of family life. May your child always have a house to shelter them, sturdy and welcoming.
Capacity - Capacity - Mental Breadth; magnanimity - carries meaning in Japanese naming tradition. May your child embody the positive aspects of capacity throughout life.
Spirit, Intelligence - Spirit represents the immortal essence, energy, and the divine spark within. May your child's spirit burn brightly, their divine spark illuminating the world.
宙 means "space, air, memorize."
Memorize - To know by heart.
Memorization - Memorizing something.
Sky - A vast and limitless space in the sky.
Time - An infinite span of time from the past to the present and future.
Space - Space - The Universe; the cosmos - carries meaning in Japanese naming tradition. May your child embody the positive aspects of space throughout life.
Air - Air represents breath, life force, and the invisible essentials. May your child breathe freely and appreciate life's invisible gifts.
Memorize - Memorize - To know by heart - carries meaning in Japanese naming tradition. May your child embody the positive aspects of memorize throughout life.
Memorization - Objects serve purposes and remind us of what matters. May your child value things for their true worth and purpose.
Sky - In Japan, the sky (天) symbolizes limitless potential, divine protection, and aspirations beyond earthly bounds. May your child reach for the heavens with boundless ambition, while remaining grounded in humility.
Time - Time is precious and irreplaceable, the medium through which life unfolds. May your child use time wisely, treasuring each moment as the gift it is.
瀬 means "shallows, rapids, position."
Rapids - Fast-flowing Parts of Rivers; swift current.
Position - Place; situation; reliance; support; time; occasion.
Shallows - The shallows represent accessible depth, careful wading, and gradual entry. May your child enter gradually and carefully.
Rapids - The rapids represent exciting challenge, navigating turbulence, and skilled passage. May your child navigate rapids skillfully.
Position - Places hold meaning, memory, and the context for our lives. May your child find their place in the world and make it better.
改 means "reform, revise, renew."
Reform - To change for the better.
Renew - To make new again.
Amend - To make changes or corrections to something in order to improve it.
Inspect - To examine something closely in order to check its quality or condition.
Reform - Reform - To change for the better - carries meaning in Japanese naming tradition. May your child embody the positive aspects of reform throughout life.
Revise - Revise - To Alter; to modify - carries meaning in Japanese naming tradition. May your child embody the positive aspects of revise throughout life.
Renew - Newness represents fresh starts, innovation, and untapped potential. May your child embrace what is new while honoring what endures.
Amend - Straightness represents honesty, directness, and integrity. May your child walk straight paths of integrity.
Inspect - Objects serve purposes and remind us of what matters. May your child value things for their true worth and purpose.
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What is Hiragana?
Hiragana is one of the two Japanese syllabaries. Each character represents a sound (mora), not a meaning. It is used for native words, grammatical particles, verb/adjective endings (okurigana), and to show pronunciation above kanji (furigana). It developed from cursive forms of kanji.
What is Katakana?
Katakana is one of the two Japanese syllabaries. Each character represents a sound (mora), not a meaning. It is mainly used to write foreign words and names, loanwords, onomatopoeia, and for emphasis.
What are English Syllables?
A syllable is a unit of pronunciation in English — it’s the beat you hear when you say a word.
Here are a few quick examples:
cat = 1 syllable
ba-by = 2 syllables
beau-ti-ful = 3 syllables
On this site, English Syllables show how a name naturally breaks into sounds when spoken in English. This helps you understand how English speakers naturally say the name and where they pause between sounds.
What are Japanese Morae?
A mora (plural: morae, Japanese: 拍 Haku) is the basic unit of sound in Japanese — think of it as one rhythmic “beat” when speaking.
Here are a few quick examples:
あ (a) = 1 mora
あい (a-i) = 2 morae
きょう (kyo-u) = 2 morae
On this site, Japanese Morae show how many “beats” a name has in Japanese. Most Japanese names have about 2–4 morae, which affects how natural and rhythmic the name sounds to native speakers.
This helps you see how the name fits into the natural rhythm of Japanese speech.
What is English Transcription?
“English transcription” (romanization) is the romanized form of a Japanese name, intended to reproduce its pronunciation as closely as possible. It is also useful for searching names on this site.
Japanese-Style Nicknames
In Japan, nicknames are used to express familiarity and affection. Typical features include:
Shortened forms: Names are often shortened for closeness, e.g., “Yuki” from “Yukiko” or “Taka” from “Takashi”.
Suffixes: Terms like “-chan” (often for girls, also for young children) and “-kun” (often for boys) are used among family and close friends. Among very close adults, “-chan” may still be used. More details
Use & context: Nicknames are informal—common among friends, family, or close colleagues—and are not suitable for formal or professional settings. Their use implies a certain degree of intimacy.
Long vowels: The long vowel mark “chōonpu” (ー) extends the preceding vowel. For example, “あーちゃん” (A-chan) lengthens the “あ” sound.
Households
Sorts surnames by the estimated number of Japanese households that use them. More households generally indicates a more common or well-known surname.
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