Answer: balloon

AnswerCrossword Clue
BALLOONFree-floating transit
balloonbag filled with a gas lighter than air
balloonto go up in a balloon
balloonto inflate (to expand with air or gas)
balloonto increase rapidly
BALLOONKind of payment
BALLOONHelium container
BALLOONLucy's party decoration?
BALLOONParty popper
BALLOONSwell
BALLOONBlow up
BALLOONCircus purchase
BALLOONChild's toy.
BALLOONTrial ....
BALLOONSausage ....
BALLOONVocal part of a comic strip.
BALLOONAuguste's Piccard's vehicle.
BALLOONPuff up
BALLOONParty decoration