How to say "rear" in Japanese

Choosing the right word
  • 後あとJLPT N5approx.Common
    no-adjectiveCovers the location sense 'rear' or 'behind'. It often appears in more formal or written expressions than 後ろ, so when speaking of what is at the back of something, 後ろ is usually the safer everyday choice.
    少女しょうじょたちのうち一人ひとりが後あとに残のこされた。↗
    One of the girls was left behind.
  • 後ろうしろJLPT N5approx.Common
    no-adjectiveThe ordinary word for the location sense 'rear' or 'back' of a person, object, or place, as in standing behind someone or sitting at the back. Use this for most everyday spatial references.
    後うしろを刈り上かりあげてください。↗
    I want it tapered in the back.
  • リアCommon
    noun, prefix, na-adjectiveA loanword used mainly in technical and vehicle-related contexts, such as car and bicycle terminology, for the 'rear' part. It is not the word for everyday spatial 'behind' statements.
  • バックJLPT N2approx.Common
    nounA loanword covering 'back' and 'rear', especially in vehicle contexts such as backing up a car. For the plain spatial sense of 'behind' or 'at the rear', 後ろ is the more natural everyday word.
  • 育てるそだてるJLPT N4approx.Common
    ichidan verb, transitive verbThe verb sense 'to rear', meaning to raise and bring up children, animals, or plants. It has nothing to do with position or direction, so never use it for the location sense of 'rear'.
    叔父おじが今日きょうの私を育そだててくれた。↗
    My uncle has made me what I am.

For the location sense 'rear', choose 「後ろ」 (or 後), the loanwords 「リア」 and 「バック」 in technical or vehicle contexts, and 「育てる」 only for the verb 'to rear' meaning to raise children or animals.

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

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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