A faint, harsh sound made in the throat.

The call of a frog or toad. (see also ribbit)

The harsh call of various birds, such as the raven or corncrake, or other creatures.

(intransitive) To make a croak.

(transitive) To utter in a low, hoarse voice.

(intransitive, of a frog, toad, raven, or various other birds or animals) To make its sound.

(slang) To die.

(transitive, slang) To kill someone or something.

To complain; especially, to grumble; to forebode evil; to utter complaints or forebodings habitually.