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evidence indication sign mark hint clue suggestion token trace signal symptom manifestation index cue pointer indicia significant grounds support dope goods grounds for reinforcement for support for intimation proof indicator lead vestige testimony note reminder inkling symbol remnant relic omen implication demonstration expression telltale sign attestation guide remains warning souvenir tip-off memento track telltale echo tip badge gesture ghost giveaway remembrance memory record shadow remainder fragment signification residue notion dead giveaway portent augury flag pledge memorial betrayal prognostic footprint beacon witness flash survival model wink key keepsake imprint basis nod allusion trail insinuation testimonial monument high sign warning sign leftover impression trophy legacy innuendo information wind remembrancer whisper example substantiation instance stamp reflection sigil syndrome recollection evocation spoor signature leak light scent reminiscence bell caution ratio rule indicant formula imputation overtone disclosure display declaration signifier show exhibition sneaking suspicion hot lead representation forewarning revelation documentation emblem mention register communication recognition antique warrant presage security info testament preamble explanation prefiguration auspice adumbration prolegomenon antiquity wake-up call print smoking gun word inside wire artefact scrap heirloom curio smattering word to wise announcement iota inference a word to the wise observation reference flea in ear word to the wise confidential information fossil historical object leavings token of remembrance memorandum artifact object of virtu museum piece archaism curiosity ancient object ruins alert alarm prompt Mayday message SOS okay blinker bleep smoke signal signal fire gentle reminder idea suspicion admonition prompting piece of advice advice notice whiff undertone caveat recommendation mnemonic conception faintest guideline sense knowledge piece of information foggiest red flag exhortation foggiest idea faintest idea faintest notion foggiest notion nuance shade aspersion slur prod air sniff nudge measure hunch tipoff steer gauge feeling barometer marker gage word of advice point of reference bellwether litmus test vague idea redolence gleam allegation understanding sign of things to come caution light moral advisory lesson event illustrating a hazard a few words of wisdom deterrent example enough said awareness veiled remark fancy citation summons order notification glimmering zeitgeber spur jolt stimulus touch catchword goad jog breath recap slight knowledge cautionary advice forecast news buzz help tickler tocsin glimmer twit feed cautionary tale promise outlook possibility aide-memoire follow-up recreation elicitation recall tinge flicker modicum connotation tang semblance dash handwriting on the wall red light secret information information received heads-up ambiguity aside soupçon monition aura double entendre thought mind image vision concept picture flashback benchmark standard touchstone meter yardstick criterion test signpost metre guide to proposal proposition commendation counsel submission motion presentation pitch plan advancement scheme outline charge setup bid bit approach brainchild angle tender opinion instruction big idea game plan

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backing in backing music backing off backing off from backing oneself into a corner backing out backing down to backing down on backing down backing dancer backing band backing away