印鑑|いんかんinkan[3]nakadaka (mid-high)

1. nounstamp; seal

• Synonym印章いんしょうWrittenFormal, written word for a seal or stamp. 「印鑑」 also names the seal, but can additionally mean the impression registered in advance with a government office or bank.
• SynonymはんこCasualThe everyday colloquial word for a personal stamp, as in 「判子を押す」; for paperwork and official procedures, 「印鑑」 is the usual term.
• SynonymスタンプNeutralLoanword covering rubber stamps, commemorative stamps and messaging-app stickers — a much broader range; formal seals for procedures are 「印鑑」.
• Synonym判はんNeutralA casual word for a seal, usually in 「判を押す」 — less formal than 「印鑑」; it also means judgment or a paper/book size.
• Synonym印形いんぎょうWrittenA written, old-fashioned word for a seal that can also mean the impression it leaves; rarely used today — say 「判子」 in daily life.
• Synonym印判いんばんWrittenAn old-fashioned, little-used written word for a seal; say 「判子」 in daily life and 「印鑑」 for official procedures.
• Synonym印顆いんかWrittenA rare, written word for a seal; in speech say 「判子」, and 「印鑑」 when talking about official procedures.
• Related消印けしいんNeutralA postmark or cancellation mark showing a stamp or revenue stamp has been used, or a mark cancelling a document; not a personal seal.
• Related封印ふういんNeutralSealing something by affixing a seal or tape over an opening, also used figuratively, as in 「封印を解く」; the focus is on sealing shut.
• Related押捺おうなつWrittenWritten, administrative term for the act of stamping, as in 「指紋押捺」; 「印鑑」 refers to the seal itself, not the action.

For seals registered for official procedures say 「印鑑」, as in 「印鑑証明」; for an everyday stamp say 「判子」, in formal writing 「印章」, for rubber stamps 「スタンプ」, and for postmarks 「消印」.

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

1. 江戸えど期きにおいて、手形てがた等とうの印影いんえいが一致いっちすることの照合しょうごうの基準きじゅんとして配布はいふした印影いんえいの見本みほん。
2. 印章いんしょうが一致いっちすることの照合しょうごうの基準きじゅんとして、官公庁かんこうちょうや銀行ぎんこうに予あらかじめ差し出さしだしてある印影いんえい又またはその印影いんえいを含ふくむ文書ぶんしょ。
3. （俗用ぞくよう）印しるし、印章いんしょう、印判いんばん、判子はんこ。