Definitions from Wiktionary ( )

▸ adjective:  (dated) Of fire, etc.: no longer alight; of a light, etc.: no longer shining; extinguished, quenched.
▸ adjective:  (figurative)
▸ adjective:  Of feelings, a person's spirit, a state of affairs, etc.: put out, as if like a fire; quenched, suppressed.
▸ adjective:  Of customs, ideas, laws and legal rights, offices, organizations, etc.: no longer existing or in use; defunct, discontinued, obsolete; specifically, of a title of nobility: no longer having any person qualified to hold it.
▸ adjective:  (chiefly biology) Of an animal or plant species, a class of people, a family, etc.: having died out completely; no longer in existence.
▸ adjective:  (geology) Of a geological feature: no longer active; specifically, of a volcano: no longer erupting.
▸ adjective:  (nuclear physics) Of a radioisotope: no longer occurring primordially due to having decayed away completely, because it has a relatively short half-life.
▸ adjective:  (obsolete) Of a person: dead; also, permanently separated from others.
▸ verb:  Synonym of extinguish
▸ verb:  (obsolete) To stop (fire, etc.) from burning; also, to stop (light, etc.) from shining; to put out, to quench.
▸ verb:  (obsolete, figurative) To kill (someone).
▸ verb:  (obsolete, figurative) To put an end to (something) completely; to annihilate, to destroy.
▸ verb:  (specifically, biology) To cause (an animal or plant species) to die out completely or become extinct (adjective sense 2.3).
▸ verb:  (obsolete, figurative) To suppress (something, as feelings, a person's spirit, a state of affairs, etc.); to quench.
▸ verb:  (obsolete, figurative, chiefly law) To abolish or make void (a law, a legal right, etc.); also, to cancel (a creditor's claim, a licence, etc.).
▸ noun:  (obsolete) Synonym of extinction (“the action of becoming or making extinct; annihilation”)

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