Available Definitions:
1) n. - The act of retiring or withdrawing one's self, especially from what is dangerous or disagreeable.
2) n. - The place to which anyone retires; a place or privacy or safety; a refuge; an asylum.
3) n. - The retiring of an army or body of men from the face of an enemy, or from any ground occupied to a greater distance from the enemy, or from an advanced position.
4) n. - The withdrawing of a ship or fleet from an enemy for the purpose of avoiding an engagement or escaping after defeat.
5) n. - A signal given in the army or navy, by the beat of a drum or the sounding of trumpet or bugle, at sunset (when the roll is called), or for retiring from action.
6) n. - A special season of solitude and silence to engage in religious exercises.
7) n. - A period of several days of withdrawal from society to a religious house for exclusive occupation in the duties of devotion; as, to appoint or observe a retreat.
8) v. i. - To make a retreat; to retire from any position or place; to withdraw; as, the defeated army retreated from the field.