Extended Strong's Greek Lexicon (Abbott-Smith based)
to guard
Usage: φρουρέω, -ῶ (φρουρός, a guard), [in LXX: I Est.4:56, Jdth.3:6, Wis.17:16, 1Ma.11:3 * ;] to guard, keep under guard, protect or keep by guarding: 2Co.11:32; metaphorically, Gal.3:23, Php.4:7, 1Pe.1:5.† (AS)