one-piece suit
any of various garments combining coverings for the upper and lower body
wetsuit
garment for water activities, providing thermal insulation but not designed to prevent water entering
catsuit
skintight one-piece garment usually with long sleeves and leggings, mostly used in fashion, fetish and erotic context
boilersuit
loose-fitting protective suit
one-piece swimsuit
swimwear
romper
one-piece combination of shorts and a shirt worn by both children and adults
wrestling singlet
one-piece uniform worn by wrestlers
bodysuit
one-piece form-fitting garment that covers the torso and the crotch
leotard
unisex skin-tight one-piece garment that covers the torso, with or without legs, worn by dancers and gymnasts
gymnastics leotard
regulation clothing for gynnastics competition
jumpsuit
one-piece suit consisting of conjoined shirt or top and trousers, originally worn by parachutists