Verb

(es)

to put out, as in fire; to end burning; to quench

to destroy or abolish something

She extinguished all my hopes.

* 1668 December 19, , “Mr.'' Alexander Seaton ''contra'' Menzies” in ''The Deci?ions of the Lords of Council & Se??ion I (Edinburgh, 1683), page 575

The Pupil after his Pupillarity, had granted a Di?charge to one of the Co-tutors, which did extingui?h the whole Debt of that Co-tutor, and con?equently of all the re?t, they being all correi debendi , lyable by one individual Obligation, which cannot be Di?charged as to one, and ?tand as to all the re?t.

to obscure or eclipse something

The rays of the sun were extinguished by the thunder clouds.

(psychology) to bring about the extinction of a conditioned reflex

(literally) to hunt down (a species) to extinction

Verb

(en verb)

To restrain within bounds; to limit; to confine; as, to restrict worlds to a particular meaning; to restrict a patient to a certain diet.

* {{quote-news

, year=2011 , date=September 28 , author=Jon Smith , title=Valencia 1 - 1 Chelsea , work=BBC Sport citation , page= , passage=It was no less than Valencia deserved after dominating possession in the final 20 minutes although Chelsea defended resolutely and restricted the Spanish side to shooting from long range.}}

(specifically, mathematics) To consider (a function) as defined on a subset of its original domain.

If we restrict sine to $[-\backslash frac\backslash pi2,\backslash frac\backslash pi2]$, we can define its inverse.