(rare, collective) A group of kittens.

(transitive) To start (a fire) or light (a torch, a match, coals, etc.).

(transitive, figuratively) To arouse or inspire (a passion, etc).

(intransitive, figuratively) To begin to grow or take hold.

(intransitive, of a rabbit or hare) To bring forth young; to give birth.

(of an animal) pregnant