A period of 40 days of isolation or restriction, historically associated with various practices such as widow's entitlement, prevention of disease outbreaks, and forbidding revenge or continued fighting among warring nobles.

A period, instance, or state of isolation from the general public or from native livestock and flora enacted to prevent the spread of any contagious disease.

(figurative) A similar period, instance, or state of rigidly enforced or self-enforced detention or isolation.

A place where such isolation is enforced, a lazaret.

(politics, figurative) A blockade of trade, suspension of diplomatic relations, or other action whereby one country seeks to isolate another.

(computing, figurative) An isolation of one program, drive, computer, etc. from the rest of a computer network to limit the damage from a bug, computer virus, etc..

(computing, figurative) The program, drive, computer, etc. thus isolated.

(transitive) To place into isolation to prevent the spread of any contagious disease.

(intransitive) To enter or stay in quarantine, particularly to self-quarantine to avoid an epidemic disease.

(figurative, transitive) Synonym of isolate more generally.

(figurative, transitive) Synonym of restrict.