intransitive verb. To die or be destroyed, especially in a violent or untimely manner.

intransitive verb. To pass from existence; disappear gradually.

intransitive verb. To spoil or deteriorate.

intransitive verb. To bring to destruction; destroy.

idiom. (perish the thought) Used to express the wish that one not even think about something.

An obsolete form of pierce.

noun. The act of perishing: in the following slang phrase.

To pass away; come to naught; waste away; decay and disappear.

To cease to live; die.

Synonyms Expire, Decease, etc. See die.

To bring to naught; injure; destroy; kill.

transitive verb. To cause perish.

intransitive verb. To be destroyed; to pass away; to become nothing; to be lost; to die; hence, to wither; to waste away.

verb. To pass away; to come to naught; to waste away; to decay and disappear.

verb. To die; to cease to live.

verb. To cause to perish.

verb. pass from physical life and lose all bodily attributes and functions necessary to sustain life

""In organic evolution the weak, the sick, the helpless, the unfit in anyway, perish, _and ought to perish_, because this is the most efficient way of strengthening the _blood or physical nature_ of the species, and thus of carrying forward evolution."