なす・為すnasu[1]atamadaka (head-high)

1. godan verb, transitive verbto do; to commit; to carry out; to bring about
   仮かりにも為なす価値かちがあるものならば何なんでも良よく為なす価値かちがある。↗

   Whatever is worth doing at all, is worth doing well.

• Synonym行うおこなうNeutralTo carry out or hold something; somewhat formal. 「為す」 is literary and mostly confined to idioms such as 「為す術もない」.
• SynonymするNeutral「する」 is the everyday, most common word for 'do'. 「為す」 is written and old-fashioned, kept to literary or idiomatic use.
• SynonymなすWrittenHomophone of 「為す」 but means to form or make up, as in 「群れを成す」. 「為す」 is about doing or carrying out.
• SynonymやるCasualColloquial 「やる」, for doing or getting things done. 「為す」 is the written, literary counterpart.
• SynonymいたすFormalHumble word for 'do', used of one's own actions. 「為す」 carries no sense of respect.
• SynonymなさるFormalHonorific for 'do', as in 「何をなさいますか」. 「為す」 carries no sense of respect.
• Synonym果たすはたすNeutralFulfils duties, roles or promises and achieves goals, doing them fully. 「為す」 is about doing or bringing a result about.
• Related成し遂げるなしとげるNeutralCarries a job or task through to the end and completes it, stressing getting it done. 「為す」 just means doing or carrying out, without that sense of completion.
• Related全うするまっとうするWrittenWritten style: to fully carry out a duty or mission, or live one's life to the full. 「為す」 simply means doing or carrying out.
• Relatedし遂げるしとげるNeutralMeans to finish or accomplish, but is rare — 「成し遂げる」 is the usual choice. 「為す」 stresses carrying out, not completion.
• Relatedやり遂げるやりとげるNeutralSticks with a task until it is finished, stressing completion. 「為す」 is about doing or bringing a result about.
• Related遣り通すやりとおすNeutralCarries something through to the very end, seeing it done. 「為す」 focuses on doing or producing a result.
• RelatedしすますWrittenOld-fashioned word for getting something done as planned. 「為す」 stresses the doing itself, not a smooth, successful outcome.
• Relatedやり抜くやりぬくNeutralPerseveres to the very end and completes the task. 「為す」 is about doing or bringing a result about.
• RelatedやりきるNeutralDoes a thing right to the end, finishing it completely. 「為す」 stresses the doing, not the finishing.
• Relatedなし終えるなしおえるWrittenWritten and rare: to finish a difficult task. 「為す」 stresses carrying out, without the sense of completion.
• RelatedしおおせるWrittenArchaic and rare: to succeed in accomplishing something. 「為す」 is about doing or bringing a result about.
• Relatedし終えるしおえるNeutralMeans to finish doing something, stressing that the action is over. 「為す」 stresses the doing, not the ending.
• Antonym爲さないWrittenThe negative form of 「為す」 — not doing. Written in style, like the headword.

「為す」 is the written, literary word for doing or carrying out, found mostly in idioms such as 「為す術もない」. In everyday speech use 「する」 or 「やる」. To stress seeing a job through to completion, pick 「成し遂げる」; for fulfilling duties or promises, 「果たす」; for the honorific, 「なさる」.

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

1. 作り上つくりあげる。
2. 行おこなう。
3. 仕上しあげる
4. 別べつの状態じょうたいにする。かえる。
5. （補助ほじょ動詞どうし）そのように思おもう。意識いしきしてする。