balloon meaning and definition

BALLOON noun

Definition of balloon (noun)

1. large tough nonrigid bag filled with gas or heated air
2. small thin inflatable rubber bag with narrow neck

BALLOON verb

Definition of balloon (verb)

1. ride in a hot-air balloon
   • "He tried to balloon around the earth but storms forced him to land in China"
2. become inflated
   • "The sails ballooned"
   • synonyms: billow, inflate