Definitions
1.noun(sometimes also used uncountably) A visible indication."I gave them a thumbs-up sign."
2.nounPhysical evidence left by an animal."The hunters found deer sign at the end of the trail."
3.nounA clearly visible object, generally flat, bearing a short message in words or pictures."I missed the sign at the corner so I took the wrong turn."
4.nounA wonder; miracle; prodigy.
5.nounAn astrological sign."Your sign is Taurus? That's no surprise."
6.nounPositive or negative polarity, as denoted by the + or - sign."I got the magnitude right, but the sign was wrong."
7.nounA specific gesture or motion used to communicate by those with speaking or hearing difficulties; now specifically, a linguistic unit in sign language equivalent to word in spoken languages.
8.nounSign language in general."Sorry, I don't know sign very well."
9.nounAn omen.""It's a sign of the end of the world," the doom prophet said."
10.nounA property of the body that indicates a disease and, unlike a symptom, is unlikely to be noticed by the patient.
11.nounA military emblem carried on a banner or standard.