plural of dinner suit

dinner jacket; tuxedo

A casual suit consisting of a shirt-like jacket and matching trousers, often associated with American-influenced fashion and fads of the 1970s.

(aviation, astronautics) A sealed, full-body garment, usually with an attachable helmet, which maintains air pressure or mechanical pressure around the body of an astronaut or aviator to compensate for the low density of the air at high altitudes.

A suit of dittoes.

(archaic) a suit consisting of matching trousers, coat, and waistcoat

(historical, feudal law) The duty of feudatories to attend the courts of their lords or superiors in time of peace, and in war to follow them and do military service.

plural of poopy suit

(slang) A waterproof overgarment worn by aircrew when flying over cold waters, which prevents hypothermia following ejection from the aircraft.

plural of leisure suit