"snag" in the noun sense
a sharp protuberance
a dead tree that is still standing, usually in an undisturbed forest
"a snag can provide food and a habitat for insects and birds"
3. rip, rent, snag, split, tear
an opening made forcibly as by pulling apart
"there was a rip in his pants"
"she had snags in her stockings"
4. hang-up, hitch, rub, snag
an unforeseen obstacle
"snag" in the verb sense
catch on a snag
"I snagged my stocking"
get by acting quickly and smartly
"snag a bargain"
Source: WordNet® (An amazing lexical database of English)
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