THESAURUS
Spoor
aroma, breath, broad hint, catchword, clue, condensation trail, contrail, course, cue, cue word, definite odor, detectable odor, effluvium, emanation, essence, evidence, exhalation, flavor, footstep, fragrance, fume, gentle hint, gesture, glimmer, glimmering, hint, hot lead, implication, index, indication, inkling, innuendo, insinuation, intimation, key, key word, kick, lead, line, look, nod, nudge, odor, path, piste, prompt, redolence, savor, scent, sign, signal, signs, smell, stench, step, subtle odor, suggestion, suspicion, symptom, telltale, tip-off, trace, traces, track, tract, trail, vapor trail, vestige, wake, whiff, whisper, wink
ROGET THESAURUS
Spoor
Odor
N
odor, smell, odorament, scent, effluvium, emanation, exhalation, fume, essence, trail, nidor, redolence, sense of smell, scent, act of smelling, olfaction, olfactories, fragrance, odorant, bloodhound, hound, spoor, odorous, odoriferous, smelling, reeking, foul-smelling, strong- scented, redolent, graveolent, nidorous, pungent, putrid, foul, olfactory, quick-scented.