How to say "id" in Japanese

• イドCommon
  nounCovers the psychoanalytic sense of 'id': the part of the mind in Freudian theory. Use this in psychology or discussions of Freud; it is a loanword, usually written in katakana.
• 身分証明書みぶんしょうめいしょCommon
  nounCovers the everyday sense of 'id' as a document proving who you are, such as what you show at an airport or when asked for ID. This is the word you want for that sense, not イド.
  身分証明書みぶんしょうめいしょを二に枚まい拝見はいけんできますか。↗

  May I see two pieces of identification?

Use 「イド」 for the psychoanalytic sense of 'id' (Freud's term), and 身分証明書 for the everyday sense of 'id' meaning identification papers; the senses are so different that context makes the choice obvious.

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

• イドid
• 身分証明書みぶんしょうめいしょidentification papers
• ＩＤアイ・ディーidentification
• 直接支配ちょくせつしはいimmediate dominance
• 身分証みぶんしょうidentification papers