(Britain, informal) An annoying child, a brat. / (rare) One who perishes. / (Britain, Australia, obsolete) An extreme.

plural of perisher

(UK, naval, slang) The Submarine Command Course.

(intransitive) To decay and disappear; to waste away to nothing. / (intransitive) To decay in such a way that it cannot be used for its original purpose / (intransitive) To die; to cease to live.

simple past tense and past participle of perish

Extremely cold. / Extreme; used of environmental or bodily conditions.

present participle of perish

The act of something that perishes; decay or destruction.

Third-person singular simple present indicative form of perish

In a perishable manner.