1. watch over so as to protect; - Example: "We must stand sentinel to protect ourselves" - Example: "The jewels over which they kept guard were stolen" [syn: stand guard, stand watch, keep guard, stand sentinel]
WordNet (r) 3.0 (2006):
stand sentinel
v 1: watch over so as to protect; "We must stand sentinel to
protect ourselves"; "The jewels over which they kept guard
were stolen" [syn: stand guard, stand watch, keep
guard, stand sentinel]