代人|だいにんdainin[0]heiban (flat)

1. nounsubstitute; deputy; proxy; representative; agent

• Synonym代理人だいりにんNeutralSomeone who acts for another; legally, one holding the right of representation, as in 「代理人弁護士」. 「代人」 is written-style and centers on appearing in one's place.
• Synonym代理だいりNeutralActing on another's behalf or an agent, as in 「部長代理」; 「代人」 refers only to the person substituting.
• Synonym代役だいやくNeutralTaking over someone's role or post, mostly in performances, as in 「代役を務める」; 「代人」 is broader.
• Synonym代行者だいこうしゃWrittenWritten-style: a person who carries out a task on someone's behalf; 「代人」 leans toward standing in for the person themselves.
• Related代わりかわりNeutralA substitute or replacement; common in both speech and writing and the most versatile. 「代人」 is a written Sino-Japanese word.
• Related身代わりみがわりNeutralA stand-in who takes on another's danger, situation, or blame, as in 「身代わりになる」; 「代人」 leans toward acting in one's place.
• Related替え玉かえだまCasualColloquial: an impostor who secretly takes another's place, with a sense of deception; 「代人」 is open substitution.
• Related補欠ほけつWrittenWritten-style: a reserve or alternate filling a vacancy, as in 「補欠選手」; 「代人」 leans toward standing in for the person.
• RelatedピンチヒッターCasualColloquial loanword: a pinch hitter in baseball, or anyone filling in at short notice; 「代人」 leans toward a written-style proxy.
• Related代表だいひょうNeutralA representative or something typical, as in 「国の代表」; 「代人」 leans toward one person substituting for another.
• Related後任こうにんWrittenWritten-style: a successor taking over a post, as in 「後任の部長」; 「代人」 leans toward temporary substitution.
• Related控えひかえNeutralA reserve kept on standby; 「代人」 leans toward appearing in one's place.
• Related総代そうだいWrittenWritten-style: the representative of an entire group, as in 「卒業生総代」; 「代人」 leans toward one person substituting for another.
• Related代行だいこうWrittenWritten-style: the act of executing something on another's behalf, as in 「運転代行」; 「代人」 is the person doing the substituting.
• Related代理者だいりしゃWrittenWritten-style: one who acts as another's agent; close in meaning to 「代人」, which is shorter and more classical.
• Related代り役かわりやくNeutralAn actor who performs in place of another; 「代人」 leans toward appearing in one's place to handle affairs.
• Related代員だいいんWrittenWritten-style: staff who handle another's business; close in meaning to 「代人」.
• Related代任だいにんWrittenWritten-style: performing another's duties or an acting official; 「代人」 leans toward standing in for the person.
• Related代表者だいひょうしゃWrittenWritten-style: the representative of a group or organization, as in 「代表者名」; 「代人」 leans toward one person substituting for another.
• RelatedスタンドインCasualColloquial loanword: a stand-in in film or TV; 「代人」 leans toward standing in for someone in dealings.
• Related後釜あとがまCasualColloquial: one who takes over a predecessor's position, or a second wife, as in 「後釜に座る」; 「代人」 leans toward temporary substitution.
• Related代議員だいぎいんWrittenWritten-style: a delegate who speaks and votes at meetings; 「代人」 leans toward one person substituting for another.
• Antonym本人ほんにんNeutralThe person themselves; the antonym of 「代人」 in the contrast between the person and their substitute.

Use 「代人」 for a person who appears in another's place, in written style, as in 「代人を立てる」. For legal agency pick 「代理人」; for taking over a role, 「代役」; the all-purpose everyday word is 「代わり」; for succession use 「後任」 or 「後釜」. The opposite is 「本人」. The other words cover narrower cases: 「代行者」「代行」 for executing tasks, 「代表」「代表者」「総代」「代議員」 for representation, 「身代わり」「替え玉」「スタンドイン」 for stand-ins, 「補欠」「控え」 for reserves, and 「ピンチヒッター」 for someone stepping in at short notice.

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

1. 本人ほんにんの代かわりの人ひと。代理人だいりにん。名代なしろ。