Table of Contents WORDNET DICTIONARY
THESAURUS

RELATED WORDS : advance guard air national guard arm guard army national guard axle guard bank guard body guard bumper guard cattle guard coast guard color guard crossing guard door guard face guard guard guard against guard boat guard dog guard duty guard hair guard of honor guard ship home guard honor guard keep guard national guard national guard bureau off guard off her guard off his guard off one's guard off your guard old guard on one's guard on your guard praetorian guard prison guard provost guard red guard republican guard security guard shin guard splash guard stand guard u. s. coast guard united states coast guard upon one's guard us coast guard watch guard yeoman of the guard

WORDNET DICTIONARY

Adjective on guard has 1 sense

• on guard(s = adj.all) on one's guard, on your guard, upon one's guard - vigilant; "on guard against con artists"; "must remain on your guard in such a situation"

THESAURUS

on guard

Argus-eyed, all ears, all eyes, at bay, aux abois, aux aguets, canny, careful, cautious, circumspect, custodial, defensively, deliberate, discreet, eagle-eyed, gingerly, guarded, hawk-eyed, heedful, hesitant, in defense, in self-defense, judicious, keen-eyed, leaving out nothing, lidless, mindful, noncommittal, observant, on the defensive, on the lookout, on the watch, open-eyed, overlooking no possibility, pawky, politic, prudent, regardful, safe, sharp-eyed, sleepless, slow to act, tentative, thorough, unadventurous, uncommunicative, undaring, unenterprising, unprecipitate, vigilant, wary, watchful, with open eyes

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