A full house is a hand with three of one rank and a pair of another.
Explanation. Sometimes called “full boat,” this hand combines trips plus a pair (e.g. J‑J‑J‑4‑4). It ranks just below four of a kind. The term evokes a “full house” in other contexts—maxed capacity—apt for poker’s second-highest common hand. It’s strong showdown material and often played for maximum value when apparent.