行い・行ない|おこないokonai[0]heiban (flat)

1. noundeed; act; action
   彼かれは勇気ゆうきある行おこないをした。↗

   He did a courageous act.
2. nounconduct; behavior; behaviour
   そのような行おこないはいかにもメグらしい。↗

   Such behavior is just like Meg.
3. noun, Buddhismasceticism

• Synonym行為こういWrittenA concrete act or deed, as in 「違法行為」「親切な行為」. Written/formal in tone, while 「行い」 stresses everyday conduct and character.
• Synonym行動こうどうNeutralGeneral action or activity, often purposeful, as in 「行動を起こす」. Neutral in register; 「行い」 instead stresses everyday conduct and character.
• Synonym仕業しわざNeutralThe doing of a person or force, usually something bad, as in 「誰の仕業だ」; also 「自然の仕業」. 「行い」 stresses everyday conduct.
• Synonym所作しょさNeutralManners and movements, as in 「美しい所作」. Focuses on how one carries and moves the body.
• Synonym素行そこうWrittenDay-to-day conduct, as in 「素行調査」. Written/formal in tone.
• Synonym振る舞いふるまいNeutralBehavior and manner, or treating someone to food and drink. Focuses on outward behavior.
• Related言動げんどうWrittenWords and deeds together, as in 「言動に注意」. Written/formal; covers both speech and action.
• Related仕打ちしうちNeutralHarsh or cruel treatment of someone, as in 「ひどい仕打ち」. Typically negative.
• Related行状ぎょうじょうWrittenEveryday behavior or conduct, written/formal, as in 「行状が悪い」.
• Related身持ちみもちWrittenOne's moral conduct; can also mean pregnancy. Written/formal with an old-fashioned flavor.
• Related品行ひんこうWrittenMoral conduct, as in 「品行方正」. Written/formal; views behavior from an ethical angle.
• Antonym不作為ふさくいWrittenFailure to do what should be done; a legal term, the opposite of acting.

Use 「行い」 for everyday conduct and character, as in 「日頃の行い」「行いを改める」. For a concrete act pick 「行為」, for action 「行動」, for whose doing 「仕業」, for words and deeds 「言動」, for moral conduct 「品行」, and for manner 「振る舞い」.

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

1. 「おこなう」の連用形れんようけい。