#1 go against v. fail to agree with; be in violation of; as of rules or patterns; "This sentence violates the rules of syntax". wn
#2 go against v. act in disregard of laws, rules, contracts, or promises; "offend all laws of humanity"; "violate the basic laws or human civilization"; "break a law"; "break a promise". wn
#3 go against v. resist; "buck the trend". wn
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