How to say "unit" in Japanese

• 単位たんいJLPT N3approx.Common
  nounThe word for units of measurement, such as meters and grams; it can also refer to a denomination. This is the word you need when talking about measuring things, not for groups or components.
• ユニットCommon
  nounThe katakana loanword, used for a self-contained component or module, and for a small group that works or performs as one; it is not the word for units of measurement.
  ２０ユニット以上いじょう注文ちゅうもんしたら、値引ねびきしていただけますか。↗

  If we place an order for more than 20 units, would you reduce the price?
• 部隊ぶたいCommon
  nounSpecifically a military sense: a force, unit, corps, or squad of troops. Use it only when 'unit' refers to an organized military body, never for measurements, components, or general groups.
  その大尉たいいはうまく部隊ぶたいを指揮しきしている。↗

  That captain handles his troops well.

Use 単位 for units of measurement such as meters and grams, 「ユニット」 for a component, module, or small performing group, and 部隊 only for military units like squads or corps.

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

• 単位たんいunit (e.g. meters, grams, etc.)
• ユニットunit
• 部隊ぶたいforce
• 位付けくらいづけranking
• 位取りくらいどりgrade
• 対策チームたいさくチームtask force
• 隊たいcompany (of troops)