"flinches" in the noun sense
1. wince, flinch
a reflex response to sudden pain
"flinches" in the verb sense
1. flinch, squinch, funk, cringe, shrink, wince, recoil, quail
draw back, as with fear or pain
"she flinched when they showed the slaughtering of the calf"
Source: WordNet® (An amazing lexical database of English)
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