Collocations for chin - noun

square
chiselled/chiseled, pointed, pointy
firm, jutting, strong
non-existent, receding, weak
dimpled
determined, resolute, stubborn
smooth
bearded, stubbly, unshaven
double
cleft

jut (esp. AmE), jut out (esp. AmE), lift, raise, stick out, tilt, tip, tip up
Maria jutted her chin defiantly.
She tilted her chin at him defiantly.

tuck in
finger, rub, scratch, stroke, tap, touch
He stroked his chin thoughtfully.

lean, prop, prop up, rest
She sat resting her chin on her hands.

cup
He cupped her chin with his hand.

rise
His chin rose in a proud gesture.

rest
Her chin was resting on his shoulder.

quiver, tremble
His chin quivered and a tear ran down his cheek.

strap
Fasten the chin strap or the helmet will fall off.

level
Slowly lower the bar to around chin level.

beneath sb's chin, under sb's chin
He put his hand under her chin and lifted her face to his.

down sb's chin
The juice dribbled down his chin.

on sb's/the chin
He had bits of food on his chin.
She caught him with a hard blow on the chin.