| Main Entry: | |
| Part of Speech: | noun |
| Definition: | warning |
| Synonyms: | Mayday, SOS, admonition, alarm, flap, high sign, sign, signal, siren, tip off, wink |
| Main Entry: | alarm |
| Part of Speech: | noun |
| Definition: | warning, signaling device |
| Synonyms: | Mayday, SOS, alert, bell, blast, buzzer, call, caution, clock, cry, drum, flap, flash*, forewarning, gong, high sign, horn, nod, scramble*, scream, shout, sign, signal, siren, squeal, tip, tip off, tocsin, trumpet, warning, whistle, wink, yell |
| Main Entry: | arouse |
| Part of Speech: | verb |
| Definition: | excite, entice |
| Synonyms: | agitate, alert, animate, awaken, call, challenge, electrify, enliven, fire up, foment, foster, goad, heat up, incite, inflame, instigate, kindle, move, provoke, rally, rouse, send, spark, spur, stimulate, stir, thrill, turn on, wake up, waken, warm, whet, whip up, work up |
| Antonyms: | bore, calm, lull, quiet |
| Main Entry: | awake |
| Part of Speech: | verb |
| Definition: | become or make aware |
| Synonyms: | activate, alert, animate, arouse, awaken, call forth, enliven, excite, incite, kindle, provoke, revive, stimulate, stir up, vivify |
| Antonyms: | deaden, lull |
| Main Entry: | beacon |
| Part of Speech: | noun |
| Definition: | light used as signal, guide |
| Synonyms: | alarm, alert, balefire, beam, bonfire, flare, guidepost, heliograph, lamp, lantern, lighthouse, lodestar, pharos, radar, rocket, sign, signal fire, smoke signal, warning signal, watchtower |
| Main Entry: | caution |
| Part of Speech: | verb |
| Definition: | warn, advise |
| Synonyms: | admonish, alert, exhort, flag, forewarn, give the high sign, give the lowdown on, pull one's coat, put one wise, tip off, tip*, urge, wave a red flag, wise one up |
| Main Entry: | forewarn |
| Part of Speech: | verb |
| Definition: | caution that something may happen |
| Synonyms: | admonish, advise, alarm, alert, apprise, dissuade, flag, forbode, give fair warning, give the high sign, portend, premonish, pull one's coat, put a bug in one's ear, put on guard, put one wise, telegraph, tip, tip off, wave a red flag |
| Main Entry: | notification |
| Part of Speech: | noun |
| Definition: | announcement |
| Synonyms: | advertisement, advisory, alert, bulletin, communication, communique, declaration, information, message, news, notice, proclamation, release, report, statement, warning |
| Main Entry: | notify |
| Part of Speech: | verb |
| Definition: | inform |
| Synonyms: | acquaint, advise, air, alert, announce, apprise, assert, blazon, brief, broadcast, cable, caution, circulate, clue in, convey, cue, debrief, declare, disclose, disseminate, divulge, enlighten, express, fill in, give, herald, hint, let in on, let know, make known, mention, pass out, post, proclaim, promulgate, publish, radio, report, reveal, send word, speak, spread, state, suggest, talk, teach, telephone, tell, tip off, vent, warn, wire, wise up, write |
| Antonyms: | conceal, hide, suppress |