印|いんin[1]atamadaka (head-high)

1. nounstamp; seal; chop
2. nounseal impression; seal; sealing; stamp; mark; print
3. noun, Buddhismmudra (symbolic hand gesture)
4. nounninja hand sign
5. nounIndia

• Synonym印鑑いんかんNeutralA seal, but also the registered impression on file at a government office or bank, as in 「印鑑証明」. Often interchangeable with 「印」, which is the shorter word.
• Synonym印章いんしょうWrittenA seal or stamp; a formal, written word. Same meaning as 「印」, but in everyday speech people say 「判子」 instead.
• SynonymはんこCasualThe everyday word for a personal seal, as in 「判子を押す」. 「印」 sounds slightly more formal, though 「印を押す」 is also said.
• Synonym判はんNeutralA seal, often as 「判を押す」; interchangeable with 「印」. Also means a judgment or a paper/book size, so context decides.
• SynonymスタンプNeutralA loanword mostly for rubber stamps and commemorative stamps, also stickers in chat apps. Personal seals are usually 「印」 or 「判子」.
• Synonym印形いんぎょうWrittenA seal, or the impression it leaves; an old-fashioned term rarely used today. Say 「判子」 in daily life.
• Synonym印判いんばんWrittenAn old-fashioned word for a seal, little used today. In daily speech say 「判子」 or 「印」; on formal occasions 「印鑑」.
• Synonym印顆いんかWrittenA rare written word for a seal. In daily speech say 「判子」, and 「印鑑」 on formal occasions.
• Synonym押し手おしてWrittenA tool for stamping, i.e. a seal; also the left-hand string-pressing in koto playing. Rare today; say 「判子」 in daily life.

For a personal seal, say 「判子」 in daily conversation; 「印を押す」 is also common and slightly more formal. On formal occasions, especially for registered seals like 「印鑑証明」, use 「印鑑」. Rubber and commemorative stamps are 「スタンプ」. The rest — 「印章」, 「印形」, 「印判」, 「印顆」, 「押し手」 — are written or old-fashioned alternatives; 「判」 works like 「印」 in 「判を押す」.

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

1. （イン） 判子はんこ。印判いんばん。判はん。印章いんしょう。
2. インドを意味いみする語ごを作つくる。印度いんどの第だい1字じ。