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

2 senses of bumper

Sense 1
bumper -- (a glass filled to the brim (especially as a toast); "we quaffed a bumper of ale")
       => glass, drinking glass -- (a container for holding liquids while drinking)

Sense 2
bumper -- (a mechanical device consisting of bars at either end of a vehicle to absorb shock and prevent serious damage)
       => mechanical device -- (mechanism consisting of a device that works on mechanical principles)