This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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v. Third-person singular simple present indicative form of contravene.

"First, there is my firmly rooted belief that—however much the notion contravenes our commonly held conception of the so-called weaker sex—the perpetrator of these grisly deeds is a woman."

contravened    contravenes    contravening   

breach    break    violate    go against    offend   

violate    defeat   

contravention   

defeat    thwart    nullify    contradict    set aside