Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun bladder

2 senses of bladder

Sense 1
bladder, vesica -- (a distensible membranous sac (usually containing liquid or gas))
       => sac -- (a structure resembling a bag in an animal)

Sense 2
bladder -- (a bag that fills with air)
       => bag -- (a flexible container with a single opening; "he stuffed his laundry into a large bag")