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

2 senses of zizz

Sense 1
zizz -- (a buzzing or whizzing sound; "a nasty zizz in the engine")
       => sound -- (the sudden occurrence of an audible event; "the sound awakened them")

Sense 2
zizz -- (a nap; "Arthur's taking a short zizz")
       => nap, catnap, cat sleep, forty winks, short sleep, snooze -- (sleeping for a short period of time (usually not in bed))