thirty-three noun 1number 1forms 2 noun1 •A phonograph record that rotates at 33+¹⁄₃ revolutions per minute; especially an LP number1 •The cardinal number after thirty-two and before thirty-four.Now he’s [Hasan Piker] thirty-three—so old, in streamer years, that his fans call him “un.” — 2025 formsthirty threes · thirty-threes