How to say "mobilization" in Japanese

Choosing the right word
  • 動員どういんJLPT N1approx.Common
    noun, suru verb, transitive verbThe core word for mobilization: mustering or calling up people, troops, or resources for a purpose. This is usually the word you want when translating 'mobilization' itself.
  • 出動しゅつどうJLPT N1approx.Common
    noun, suru verb, intransitive verbCovers units or personnel being dispatched or going into action, as when police, fire crews, or Self-Defense forces are sent out. It views mobilization from the dispatch stage rather than the mustering.
    その反乱はんらんを鎮圧ちんあつするために軍隊ぐんたいの出動しゅつどうが要請ようせいされた。↗
    The army was called to suppress the revolt.
  • 行動こうどうJLPT N3approx.Common
    suru verb, intransitive verb, no-adjectiveMeans action, conduct, or behaviour; its link to 'mobilization' is only marginal. This is seldom the word you want for mobilization — use it only when 'action' itself is meant.
    彼かれは友人ゆうじんの行動こうどうに憤慨ふんがいした。↗
    He resented his friend's action.
  • 結集けっしゅうCommon
    noun, suru verb, transitive verb, intransitive verbRefers to concentrating or marshalling efforts, forces, or support in one place — gathering things together rather than summoning them. Suits political or organizational rallying of forces.
    非ひ喫煙者きつえんしゃは新あたらしい禁煙きんえん法ほうを支持しじして結集けっしゅうしています。↗
    Non-smokers are rallying behind the new anti-smoking law.

Use 動員 for mustering people or resources, 出動 for units being dispatched into action, 結集 for gathering forces or efforts together, and avoid 行動, which means action or conduct rather than mobilization.

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

Japanese equivalents
  • 動員どういんmobilization
  • 出動しゅつどうmobilization
  • 行動こうどうaction
  • 結集けっしゅうconcentration (of efforts, forces, etc.)

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

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