Sign.
Synonyms:
| emblem, | mark, | presage, | symbol, | token, |
| indication, | note, | prognostic, | symptom, | type. |
| manifestation, | omen, | signal, | ||
A sign (L. signum) is any distinctive mark by which a thing may be recognized or its presence known, and may be intentional or accidental, natural or artificial, suggestive, descriptive, or wholly arbitrary; thus, a blush may be a sign of shame; the footprint of an animal is a sign that it has passed; the sign of a business house now usually declares what is done or kept within, but formerly might be an object having no connection with the business, as "the sign of the trout;" the letters of the alphabet are signs of certain sounds. While a sign may be involuntary, and even unconscious, a signal is always voluntary, and is usually concerted; a ship may show signs of distress to the casual observer, but signals of distress are a distinct appeal for aid. A symptom is a vital phenomenon resulting from a diseased condition; in medical language a sign is an indication of any physical condition, whether morbid or healthy; thus, a hot skin and rapid pulse are symptoms of pneumonia; dulness of some portion of the lungs under percussion is one of the physical signs. Compare AUGUR; CHARACTERISTIC; EMBLEM.