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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!
Kuukun(くうくん)
Uu-chan( うーちゃん)
Kuu-kun( くーくん)![]()
This name is considered unisex, but it's more commonly used for girls.
See the girls' version here.
This name is also used as a surname:
Kuu
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 "Kuu," ranked by the total number of "Good!" votes.
空 means "sky, empty, to empty."
Sky - The Vast Heavens; the atmosphere; feeling of emptiness.
Emptiness - A lack of content or substance.
Loneliness - A feeling of emptiness or desolation.
Waste - Something that is not used or is of no value.
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.
Empty - Emptiness in Japanese philosophy (空) represents potential and openness to receive. May your child embrace emptiness as potential, ready to be filled with wisdom.
To Empty - Emptiness in Japanese philosophy (空) represents potential and openness to receive. May your child embrace emptiness as potential, ready to be filled with wisdom.
Emptiness - Emptiness represents potential, space for growth, and openness. May your child find that emptiness creates space for new blessings.
Gap - Gaps represent opportunity, space for growth, and potential to fill. May your child see gaps as opportunities to contribute.
Hole - Holes represent potential, space for filling, and opportunity. May your child fill the holes in the world with their unique gifts.
In Vain - Working in vain teaches the importance of purposeful effort. May your child's efforts never be in vain but bear fruit.
Loneliness - Loneliness teaches us the value of connection and self-sufficiency. May your child find peace in solitude and joy in companionship.
Vast - Vastness represents limitless potential, expansive thinking, and boundless opportunity. May your child's potential be vast, their dreams unbounded by limitation.
Waste - Understanding waste teaches the value of resources and effort. May your child avoid waste and use resources wisely.
来 means "to come, to bring, since."
To Bring - To cause to come.
Since - From a point in time until now.
Future - What is yet to come.
Particle - Adjusting rhythm in sentences.
To Come - Coming represents arrival, approach, and the fulfillment of anticipated meeting. May your child come into their own, arriving at their destined place.
To Bring - The act of bring represents purposeful action and the will to make a difference. May your child bring with wisdom and purpose, making a positive difference in the world.
To Comfort - The act of comfort represents purposeful action and the will to make a difference. May your child comfort with wisdom and purpose, making a positive difference in the world.
Since - Sharpness represents clarity, precision, and cutting through confusion. May your child have a sharp mind that cuts through to truth.
Future - Future - What is yet to come - carries meaning in Japanese naming tradition. May your child embody the positive aspects of future throughout life.
Particle - Particles represent the small things that make up the whole. May your child appreciate how small particles create great things.
侑 means "encourage, assist, offer."
Offer - To present food or drink.
Forgive - To pardon or excuse a fault or offense.
Help - To provide protection or assistance.
Recommend - To suggest or offer something, such as a dish or drink.
Reward - To express gratitude or appreciation.
Encourage - Encouraging represents support, motivation, and lifting others up. May your child encourage others, spreading confidence and hope.
Assist - Assist represents a role of purpose and contribution to society. May your child embody the assist's dedication and skill in their life's work.
Offer - Offering represents generosity, service, and giving of oneself. May your child offer their gifts generously to the world.
Forgive - Forgiveness represents freedom, healing, and the release from resentment. May your child forgive freely, finding freedom and healing in release.
Help - Helping represents service, assistance, and making others' lives better. May your child help generously and receive help graciously.
Recommend - Objects serve purposes and remind us of what matters. May your child value things for their true worth and purpose.
Reward - Reward - To express gratitude or appreciation - carries meaning in Japanese naming tradition. May your child embody the positive aspects of reward throughout life.
来 means "to come, to bring, since."
To Bring - To cause to come.
Since - From a point in time until now.
Future - What is yet to come.
Particle - Adjusting rhythm in sentences.
To Come - Coming represents arrival, approach, and the fulfillment of anticipated meeting. May your child come into their own, arriving at their destined place.
To Bring - The act of bring represents purposeful action and the will to make a difference. May your child bring with wisdom and purpose, making a positive difference in the world.
To Comfort - The act of comfort represents purposeful action and the will to make a difference. May your child comfort with wisdom and purpose, making a positive difference in the world.
Since - Sharpness represents clarity, precision, and cutting through confusion. May your child have a sharp mind that cuts through to truth.
Future - Future - What is yet to come - carries meaning in Japanese naming tradition. May your child embody the positive aspects of future throughout life.
Particle - Particles represent the small things that make up the whole. May your child appreciate how small particles create great things.
羽 means "feather, bird, ornament."
Ornament - A decorative item held while dancing.
Help - Something that provides assistance. An assistant.
Numeral - A numeral used to count birds or rabbits.
Feather - Feather represents a role of purpose and contribution to society. May your child embody the feather's dedication and skill in their life's work.
Counter for Birds - Birds symbolize freedom, aspiration, and the soul's journey between heaven and earth. May your child soar freely like a bird, carrying messages of hope between heaven and earth.
Ornament - Objects serve purposes and remind us of what matters. May your child value things for their true worth and purpose.
Help - Helping represents service, assistance, and making others' lives better. May your child help generously and receive help graciously.
Numeral - Being numeral represents a valuable quality that enriches character and life. May your child be numeral, letting this quality guide their path.
Support - Supporting represents help, foundation, and being there for others. May your child support others and receive support when needed.
玖 means "black gem, nine."
Nine - Used in documents to prevent alteration of the number nine.
Black Gem - Black represents formality, mystery, and the profound depths of the unknown. May your child have black's dignity, comfortable with mystery and the unknown.
Nine - Nine (九) is the highest single digit, representing completion, longevity, and imperial power. May your child reach the heights of achievement, complete and long-lived like the sacred number nine.
佑 means "help."
玖 means "black gem, nine."
Nine - Used in documents to prevent alteration of the number nine.
Black Gem - Black represents formality, mystery, and the profound depths of the unknown. May your child have black's dignity, comfortable with mystery and the unknown.
Nine - Nine (九) is the highest single digit, representing completion, longevity, and imperial power. May your child reach the heights of achievement, complete and long-lived like the sacred number nine.
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.
琥 means "amber, tiger tally."
Amber - Amber represents a role of purpose and contribution to society. May your child embody the amber's dedication and skill in their life's work.
Tiger Tally - Tiger Tally - A tiger-shaped token of authority - carries meaning in Japanese naming tradition. May your child embody the positive aspects of tiger tally throughout life.
侑 means "encourage, assist, offer."
Offer - To present food or drink.
Forgive - To pardon or excuse a fault or offense.
Help - To provide protection or assistance.
Recommend - To suggest or offer something, such as a dish or drink.
Reward - To express gratitude or appreciation.
Encourage - Encouraging represents support, motivation, and lifting others up. May your child encourage others, spreading confidence and hope.
Assist - Assist represents a role of purpose and contribution to society. May your child embody the assist's dedication and skill in their life's work.
Offer - Offering represents generosity, service, and giving of oneself. May your child offer their gifts generously to the world.
Forgive - Forgiveness represents freedom, healing, and the release from resentment. May your child forgive freely, finding freedom and healing in release.
Help - Helping represents service, assistance, and making others' lives better. May your child help generously and receive help graciously.
Recommend - Objects serve purposes and remind us of what matters. May your child value things for their true worth and purpose.
Reward - Reward - To express gratitude or appreciation - carries meaning in Japanese naming tradition. May your child embody the positive aspects of reward throughout life.
琥 means "amber, tiger tally."
Amber - Amber represents a role of purpose and contribution to society. May your child embody the amber's dedication and skill in their life's work.
Tiger Tally - Tiger Tally - A tiger-shaped token of authority - carries meaning in Japanese naming tradition. May your child embody the positive aspects of tiger tally throughout life.
羽 means "feather, bird, ornament."
Ornament - A decorative item held while dancing.
Help - Something that provides assistance. An assistant.
Numeral - A numeral used to count birds or rabbits.
Feather - Feather represents a role of purpose and contribution to society. May your child embody the feather's dedication and skill in their life's work.
Counter for Birds - Birds symbolize freedom, aspiration, and the soul's journey between heaven and earth. May your child soar freely like a bird, carrying messages of hope between heaven and earth.
Ornament - Objects serve purposes and remind us of what matters. May your child value things for their true worth and purpose.
Help - Helping represents service, assistance, and making others' lives better. May your child help generously and receive help graciously.
Numeral - Being numeral represents a valuable quality that enriches character and life. May your child be numeral, letting this quality guide their path.
Support - Supporting represents help, foundation, and being there for others. May your child support others and receive support when needed.
空 means "sky, empty, to empty."
Sky - The Vast Heavens; the atmosphere; feeling of emptiness.
Emptiness - A lack of content or substance.
Loneliness - A feeling of emptiness or desolation.
Waste - Something that is not used or is of no value.
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.
Empty - Emptiness in Japanese philosophy (空) represents potential and openness to receive. May your child embrace emptiness as potential, ready to be filled with wisdom.
To Empty - Emptiness in Japanese philosophy (空) represents potential and openness to receive. May your child embrace emptiness as potential, ready to be filled with wisdom.
Emptiness - Emptiness represents potential, space for growth, and openness. May your child find that emptiness creates space for new blessings.
Gap - Gaps represent opportunity, space for growth, and potential to fill. May your child see gaps as opportunities to contribute.
Hole - Holes represent potential, space for filling, and opportunity. May your child fill the holes in the world with their unique gifts.
In Vain - Working in vain teaches the importance of purposeful effort. May your child's efforts never be in vain but bear fruit.
Loneliness - Loneliness teaches us the value of connection and self-sufficiency. May your child find peace in solitude and joy in companionship.
Vast - Vastness represents limitless potential, expansive thinking, and boundless opportunity. May your child's potential be vast, their dreams unbounded by limitation.
Waste - Understanding waste teaches the value of resources and effort. May your child avoid waste and use resources wisely.
羽 means "feather, bird, ornament."
Ornament - A decorative item held while dancing.
Help - Something that provides assistance. An assistant.
Numeral - A numeral used to count birds or rabbits.
Feather - Feather represents a role of purpose and contribution to society. May your child embody the feather's dedication and skill in their life's work.
Counter for Birds - Birds symbolize freedom, aspiration, and the soul's journey between heaven and earth. May your child soar freely like a bird, carrying messages of hope between heaven and earth.
Ornament - Objects serve purposes and remind us of what matters. May your child value things for their true worth and purpose.
Help - Helping represents service, assistance, and making others' lives better. May your child help generously and receive help graciously.
Numeral - Being numeral represents a valuable quality that enriches character and life. May your child be numeral, letting this quality guide their path.
Support - Supporting represents help, foundation, and being there for others. May your child support others and receive support when needed.
Names that have the same gender and start with K.
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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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