How to say "full" in Japanese

Choosing the right word
  • フルCommon
    na-adjectiveThe English word 'full' taken into Japanese, used as an element within loanword expressions. Reach for it when 'full' appears as part of a borrowed term rather than as an ordinary sentence word.
    The factory is running at full capacity.
  • 詳しいくわしいJLPT N3approx.Common
    i-adjectiveCovers 'full' in the sense of detailed and thorough, as in a full account or explanation. Choose it whenever 'full' could be replaced by 'detailed'.
    I want more detailed information.
  • 全幅ぜんぷくCommon
    no-adjectiveCovers 'full' in the sense of wholehearted or utmost, as in having full trust in someone. It is not a word for physical fullness; it describes putting everything into a feeling or attitude.
    彼かれらは指導者しどうしゃに全幅ぜんぷくの信頼しんらいをおいている。↗
    They have full confidence in their leader.
  • 満杯まんぱいCommon
    no-adjectiveDescribes something filled to capacity, holding all it can — a glass filled to the brim, for instance. Use it when 'full' refers to physical fullness rather than detail, amount, or feeling.
  • 正味しょうみJLPT N2approx.Common
    no-adjectiveCovers 'full' in expressions of amount, especially full working hours, and it also means 'net'. Use it for the actual amount of time or a net quantity rather than physical fullness.

Choose 「フル」 for borrowed expressions, 「詳しい」 for 'full' meaning detailed, 全幅 for wholehearted 'full' as in trust, 満杯 for physical fullness to capacity, and 正味 for net or full amounts such as working hours.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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