on one's guard
warning, early warning, caution, caveat, notice, premonition, premonishment, prediction, contraindication, lesson, dehortation, admonition, monition, alarm, handwriting on the wall, mene mene tekel upharsin, red flag, yellow flag, fog-signal, foghorn, siren, monitor, warning voice, Cassandra, signs of the times, Mother Cary's chickens, stormy petrel, bird of ill omen, gathering clouds, clouds in the horizon, death watch, watchtower, beacon, signal post, lighthouse, sentinel, sentry, watch, watchman, watch and ward, watchdog, bandog, housedog, patrol, patrolman, vedette, picket, bivouac, scout, spy, spial, undercover agent, mole, plainclothesman, advanced guard, rear guard, lookout, cautiousness, monitor, guard camera, radar, AWACS, spy satellite, spy-in-the- sky, U2 plane, spy plane, warning, premonitory, monitory, cautionary, admonitory, admonitive, sematic, warned, forewarned, on one's guard
, in terrorem, Int, beware!, ware!, take care!, look out!, fore (golf), mind what you are about!, take care what you are about!, mind!, ne reveillez pas le chat qui dort, don't wake a sleeping cat, foenum habet in cornu, caveat actor, le silence du people est la legon des rois, verbum sat sapienti, a word to the wise is sufficient, un averti en vaut deux.
caution, cautiousness, discretion, prudence, cautel, heed, circumspection, calculation, deliberation, foresight, vigilance, warning, coolness, self-possession, self-command, presence of mind, sang froid, well-regulated mind, worldly wisdom, Fabian policy, cautious, wary, guarded, on one's guard
, cavendo tutus, in medio tutissimus, vigilant, careful, heedful, cautelous, stealthy, chary, shy of, circumspect, prudent, discreet, politic, sure-footed, unenterprising, unadventurous, cool, steady, self-possessed, overcautious, cautiously, Int, have a care!, timeo Danaos, festina lente, ante victoriam ne canas triumphum, don't sing out victory before the triumph, give, every man thine ear but few thy voice, he who laughs last laughs best, il rit bien qui rit le dernier, ni firmes carta que no leas ni bebas agua que no v, nescit vox missa reverti, love all, trust a few, noli irritare leones, safe bind safe find, if it ain't broke, don't fix it.
care, solicitude, heed, heedfulness, scruple, watchfulness, vigilance, surveillance, eyes of Argus, watch, vigil, look out, watch and ward, loeil du maitre, alertness, attention, prudence &c, circumspection, anxiety, forethought, precaution, tidiness accuracy, minuteness, attention to detail, careful regardful, heedful, taking care, particular, prudent, considerate, thoughtful, provident, alert, sure-footed, guarded, on one's guard
, on the qui vivre, on the alert, on watch, on the lookout, awake, broad awake, vigilant, watchful, wakeful, wistful, Argus-eyed, wide awake, on the watch for (expectant), tidy accurate, scrupulous, cavendo tutus, carefully, with care, gingerly, quis custodiet istos custodes?, who will watch the watchers?, care will kill a cat, ni bebas agua que no veas, O polished perturbation! Golden care!, the incessant care and labor of his mind.