also: ティーピーオー
noun
time, place, occasion
A wasei-eigo acronym used when considering what is appropriate for a given situation. Often used in phrases like TPOをわきまえる (to be mindful of the occasion) or TPOに合わせる (to suit the time and place).
wasei-eigo (Japanese-coined English)
服装はTPOに合わせて選びましょう。
Choose your clothes according to the time, place, and occasion.
彼はTPOをわきまえた発言ができる人だ。
He is someone who can speak appropriately for the occasion.