How to say "expose" in Japanese

Choosing the right word
  • 晒すさらすCommon
    godan verb, transitive verbCovers the broad sense of leaving something exposed — to the sun, to public view, or to danger. Typical when something is deliberately or carelessly subjected to harsh conditions, as in exposing oneself to criticism or sunlight.
    Don't expose your skin to the sun for too long.
  • ばらすCommon
    godan verb, transitive verbUsed only for exposing a secret — disclosing or revealing something someone wanted hidden. It is colloquial, so it fits casual talk about letting the cat out of the bag rather than formal disclosure.
    私は彼かれの秘密ひみつをばらすと脅おどしをかけた。↗
    I threatened to reveal his secret.
  • 当てるあてるJLPT N3approx.Common
    ichidan verb, transitive verbIts sense of 'expose' is physical, chiefly exposing something to light or heat, as in exposing the body to the sun. For most figurative senses of 'expose' this is not the word you want.
    この薬品やくひんは日光にっこうに当あてないようにしなさい。↗
    Don't expose this chemical to direct sunlight.
  • 明かすあかすJLPT N1approx.Common
    godan verb, transitive verbMeans to reveal or divulge what was kept hidden, and is glossed 'expose' in that sense. It suits making secrets, plans, or one's identity known, and is less colloquial than ばらす.
    これは秘密ひみつです。他人たにんに明あかさないでください。↗
    This is a secret. Keep it to yourself.

Use 「晒す」 for exposing things to sun, public view, or danger; 「ばらす」 and 「明かす」 for exposing secrets, with 「ばらす」 more colloquial; 「当てる」 mainly means physical exposure to light or heat.

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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