To defy or challenge someone

To touch something with one's body. / To touch another person with one's body in a sexually stimulating manner. / (of animals) To touch a person's body in a friendly manner, seeking attention.

(transitive) To begin to encounter problems with (someone or something).

(idiomatic) To defy convention; to do something in a manner that is unusual or out of the ordinary.

(idiomatic) Despite seemingly insurmountable opposition or probability.

(now chiefly law) A very destructive and immoral act; later specifically, something causing widespread human misery or loss of life; an atrocity.

plural of race against time

To cause someone to have to solve a problem or deal with an issue.

plural of crime against nature

(transitive, obsolete) To attack or take up arms against (someone). / (figuratively) To resist, oppose.