Romper is a synonym of onesie.
As nouns the difference between romper and onesie
is that romper is someone who romps or frolics or romper can be onesie while onesie is (us) a one-piece garment for an infant or small child, generally worn over a diaper.
As a verb romper
is to abduct (a victim) to a room where they are tortured and murdered.
romper
English
Etymology 1
Noun
(
en noun)
Someone who romps or frolics.
(nautical) A ship that has moved far ahead of a convoy; see also straggler.
Etymology 2
Short for romper suit.
Etymology 3
From (Romper Room) , name of a children's television series. See romp.
Verb
(
en verb)
To abduct (a victim) to a room where they are tortured and murdered.
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onesie
English
Noun
(
en noun)
(US) A one-piece garment for an infant or small child, generally worn over a diaper.
One-piece adult loungewear jumpsuit.
One-piece fashionable streetwear worn mostly by teenagers.
Synonyms
* (a one-piece baby garment) romper, romper suit