How to say "fill" in Japanese

Choosing the right word
  • 満ちるみちるJLPT N3approx.Common
    ichidan verb, intransitive verbCovers something becoming full or brimming — a vessel with water, a room with light, a heart with confidence. The subject is what fills up, not the person doing the filling.
    Although the phrase "world peace" sounds attractive, the road to world peace is very long and full of troubles.
  • 盛り土もりどCommon
    nounThe civil-engineering noun for fill: earth placed to raise ground level, as for a road or railway embankment. Not a general verb for filling — outside construction it is seldom the word you want.
  • 広がるひろがるJLPT N3approx.Common
    godan verb, intransitive verbFor 'fill' as in something spreading out to occupy a space — a sound or view filling a room or valley. The nuance is extension across a space rather than packing something full.
    The rumor spread far and wide.
  • 詰めるつめるJLPT N3approx.Common
    ichidan verb, transitive verbCovers 'fill' as packing or cramming things tightly into a space — stuffing a bag or packing a box. The emphasis is on tight packing, not simply on something becoming full.
    この穴あなを何なんかで詰つめなくては。↗
    We've got to fill this hole with something.
  • 補うおぎなうJLPT N2approx.Common
    godan verb, transitive verbFor 'fill' meaning to fill a vacancy or make up a shortage — filling a post, covering a loss. The idea is compensating for something missing, not filling a physical container.
    あなたの食事しょくじにはビタミンを補おぎなうほうがよい。↗
    You had better supplement your diet with vitamins.

Choose by what is being filled and how: 「満ちる」 for something becoming full or brimming, 「詰める」 for packing things in, 「広がる」 for spreading through a space, 「補う」 for filling a vacancy or shortage, and 「盛り土」 only for civil-engineering fill.

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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