Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb protrude
3 senses of protrude
Sense 1
stick out, protrude, jut out, jut, project -- (extend out or project in space; "His sharp nose jutted out"; "A single rock sticks out from the cliff")
Sense 2
start, protrude, pop, pop out, bulge, bulge out, bug out, come out -- (bulge outward; "His eyes popped")
=> change shape, change form, deform -- (assume a different shape or form)
Sense 3
bulge, pouch, protrude -- (swell or protrude outwards; "His stomach bulged after the huge meal")
=> change shape, change form, deform -- (assume a different shape or form)