WordNet sense 1 (a slight but appreciable addition):

hint, jot, mite, soupcon, speck, tinge, touch

WordNet sense 2 (a sudden unforeseen crisis (usually involving danger) that requires immediate action):

emergency, exigency

WordNet sense 3 (make off with belongings of others):

abstract, cabbage, filch, hook, lift, pilfer, purloin, swipe, nobble, snarf, sneak, abstract

WordNet sense 4 (make ridges into by pinching together):

crimp

WordNet sense 5 (squeeze tightly between the fingers):

squeeze, tweet, twinge, twitch

WordNet sense 6 (cut the top off):

top

WordNet sense 7 (irritate as if by a nip, pinch, or tear):

vellicate

WordNet sense 8 (a squeeze with the fingers):

tweak

WordNet sense 9 (the act of apprehending (especially apprehending a criminal)):

apprehension, arrest, catch, collar, taking into custody