補佐・輔佐|ほさhosa[1]atamadaka (head-high)

Common
Which spelling to use
補佐補佐 is the most common written form and the recommended choice for learners; it is the kanji-only form.
輔佐輔佐 is a rarely used kanji-only variant. You may encounter it, but choose 補佐 when writing this word yourself.
Definitions
  1. noun, suru verb, transitive verbaid; help; assistance; assistant; counselor; counsellor; adviser; advisor
    His official title at the company is Assistant to the President.
Conjugation
Dictionary form補佐する(ほさする)
Polite (masu)補佐します(ほさします)
Negative (nai)補佐しない(ほさしない)
polite (masen)補佐しません(ほさしません)
classical zu / nu補佐せず・補佐せぬ(ほさせず・ほさせぬ)
Past (ta)補佐した(ほさした)
polite (mashita)補佐しました(ほさしました)
Past negative (nakatta)補佐しなかった(ほさしなかった)
polite (masen deshita)補佐しませんでした(ほさしませんでした)
Te form補佐して(ほさして)
Potential補佐できる(ほさできる)
Passive補佐される(ほさされる)
Causative補佐させる(ほささせる)
Causative passive補佐させられる(ほささせられる)
Conditional (ba)補佐すれば(ほさすれば)
tara補佐したら(ほさしたら)
Volitional補佐しよう(ほさしよう)
polite (mashou)補佐しましょう(ほさしましょう)
Imperative補佐しろ(ほさしろ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Synonym補助ほじょNeutralNeutral noun for subsidies and allowances that make up for a shortfall, as in 「補助金」; unlike 「補佐」, it is not about holding an aide's role beside a superior.
  • Synonym手助けてだすけCasualColloquial noun for lending a hand with a task; suggests a small, everyday bit of help rather than the formal aide role of 「補佐」.
  • Synonym助力じょりょくWrittenWritten and polite: lending one's strength to another's work, as in 「ご助力を賜る」; formal-prose help, not the aide post of 「補佐」.
  • Synonym力添えちからぞえNeutralNeutral noun for backing someone up, mostly heard in the honorific 「お力添え」; a courteous way to speak of help, not a job title like 「補佐」.
  • SynonymアシストCasualColloquial loanword for helping out, or in soccer the final pass before a goal; casual everyday word, not the formal aide role of 「補佐」.
  • Synonym援助えんじょWrittenWritten, formal noun for lending help to people or groups in need, typically funds, supplies or expertise, as in 「経済援助」「技術援助」; not a role beside a superior like 「補佐」.
  • Synonym支援しえんNeutralNeutral noun for sustained support of people or causes, as in 「被災地支援」; stresses ongoing backing rather than serving at a superior's side.
  • Synonym扶助ふじょWrittenWritten noun for supporting someone's livelihood, mainly in social-welfare contexts, as in 「相互扶助」; institutional aid, not an aide post.
  • SynonymアシスタントNeutralNeutral loanword for an assistant's position, as in 「アシスタント・ディレクター」; a job title, where 「補佐」 stresses the assisting itself.
  • Synonym女房役にょうぼうやくNeutralNeutral noun for a trusted right-hand person, as in 「社長の女房役」; close to 「補佐」 in meaning but idiomatic and figurative.
  • SynonymヘルプCasualColloquial loanword for help or rescue; also the help menu in software. Casual everyday word, nothing like the formal aide role of 「補佐」.
  • Related助成じょせいWrittenWritten noun for funding and fostering projects, as in 「研究助成金」; financial sponsorship, not personal service to a superior.
  • Related介助かいじょNeutralNeutral noun for helping the elderly, sick or disabled with their movements, as in 「介助犬」; hands-on care at one's side, not a staff role.
  • Related一助いちじょWrittenWritten noun for a small, modest help, typically used humbly, as in 「一助となれば」; self-deprecating, unlike the defined post of 「補佐」.
  • Related助けるたすけるNeutralNeutral verb and the everyday default for helping or rescuing; it can describe helping a superior, but unlike 「補佐」 it does not name an aide post or role.
  • Relatedお手伝いおてつだいCasualPolite colloquial noun for helping out, or for a maid, as in 「お手伝いさん」; domestic, casual help rather than a deputy's post.
  • Related手伝うてつだうNeutralNeutral verb for helping with a task, as in 「家事を手伝う」; the everyday word for doing part of someone's work, not an aide position.
  • Related手伝いてつだいNeutralNeutral, everyday noun for a helper or for helping out, as in 「店の手伝い」; plain help with a task, where 「補佐」 sounds more official.
  • Related加担かたんWrittenWritten noun for siding with a party and lending them a hand, often with a negative tinge of complicity; 「補佐」 simply names the role of assisting a superior.
  • Related加勢かせいNeutralNeutral noun for joining in as reinforcement, stressing added manpower or strength; not the steady aide role of 「補佐」.
  • Related応援おうえんNeutralNeutral noun with wide use, from backing someone up to cheering them on, as in 「応援団」; unlike 「補佐」, it is not the name of an aide post.
  • Related介添えかいぞえNeutralNeutral noun for attending and caring for someone at their side, or a bridesmaid or best man; personal attendance, not a deputy post.
  • Related協賛きょうさんWrittenWritten noun for endorsing and cooperating in or sponsoring an event; support based on approval, not personal service to a superior.
  • Related助太刀すけだちNeutralNeutral noun for stepping in to back someone up, originally in a duel or fight, as in 「助太刀する」; in everyday use it keeps a swashbuckling flavor and names no aide post.
  • Related助勢じょせいWrittenWritten noun for joining a side to back or reinforce it; adds strength in a confrontation, unlike the subordinate service of 「補佐」.
  • Related幇助ほうじょWrittenWritten, legal-flavored noun for helping someone commit a crime, as in 「自殺幇助」; 「補佐」 is ordinary assisting in a supporting role, with no criminal sense.
  • Antonym主導しゅどうWrittenWritten antonym: leading or directing from the center, as in 「政府主導」; taking charge where 「補佐」 means serving behind a leader.

Use 「補佐」 for assisting a superior or serving as a deputy, as in 「課長補佐」 or 「首相を補佐する」. For a job title say 「アシスタント」, for a trusted right hand 「女房役」. Everyday helping is 「手伝う」 or 「助ける」; subsidies are 「補助」, and care for the elderly or sick is 「介助」. The opposite—leading rather than assisting—is 「主導」.

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

Japanese definitions
  1. 人ひとに付ついて、仕事しごとの手助てだすけをすること。また、その役やくやその人ひと。
Kanji in this word
English equivalents
See also

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