SENTINEL n.
uards; specifically (Mil.), a soldier set to guard an army, camp, or other place, from surprise, to observe the approach of danger, and give notice of it; a sentry. The sentinels who paced the ramparts. Macaulay.
SET v.
(a) To cause to advance. (b) To promote. -- To set free, to release from confinement, imprisonment, or bondage; to liberate; to emancipate. -- To set in, to put in the way; to begin; to give a start to. [Obs.] If you please to assist and set me in, I will recollect myself. Collier. -- To set in order, to adjust or a…