To wriggle is to squirm and twist quickly. Think of how hard it is to hold a rambunctious puppy as it wriggles in your arms.

Wriggle sounds a lot like wiggle, and the two words very nearly mean the same thing. There is a subtle difference, though: when you wriggle, you twist, turn, or bend as you move. When you wiggle, you make more of a back-and-forth motion. In fact, these two near-homonyms have completely different etymological sources. While wiggle stems from a Germanic root meaning "cradle," wriggle's root means "to turn or bend."

Definitions of wriggle

v move in a twisting or contorted motion, (especially when struggling)

“The child tried to wriggle free from his aunt's embrace”
squirm, twist, worm, wrestle, writhe
make a sudden twisting motion
Type of:
move so as to change position, perform a nontranslational motion

n the act of wiggling

squirm, wiggle
Type of:
motility, motion, move, movement
a change of position that does not entail a change of location

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