- pajamas, pyjamas, pj's, jammies - loose-fitting nightclothes worn for sleeping or lounging; have a jacket top and trousers
--1 is a kind of nightclothes, nightwear
--1 has particulars: lounging pajamas, lounging pyjamas; sleepers - pajamas, pyjamas - lightweight trousers worn in various Eastern countries
--2 is a kind of trousers, pants