- something that indicates a fact, quality, etc.; indication; token: black as a sign of mourning
- a gesture or motion that conveys information, gives a command, etc.: a nod as a sign of approval
- any of the gestures used in sign language
- sign language (sense )
- a mark or symbol having an accepted and specific meaning: ¢ is the sign for cent(s)
- any linguistic unit, as a word, letter, etc., that is the symbol of an idea, function, etc.
- a publicly displayed board, placard, etc. bearing information, advertising, a warning, etc.
- anything marking the trail of an animal, as footprints
- any visible trace or indication: the signs of spring
- an act or happening regarded as a manifestation of divine will or power
- an omen; portent
- sign of the zodiac
- Med. an objective indication or symptom of a disease
Origin of signMiddle English signe from Old French from Classical Latin signum, a mark, token, probably from base of secare, to cut (see saw): origin, originally sense probably “incised mark”
- to mark with a sign, esp. with the sign of the cross, as in blessing
- to write one's name on, as in acknowledging authorship, authorizing action, etc.
- to write (one's name) as a signature
- to engage by written contract; sign on
- Now Rare to indicate or express by a sign; signal
- to communicate (thoughts, ideas, etc.) by using sign language
- to write one's signature, as in attesting or confirming something
- to make a sign; signal; also, specif., to use the sign language of the deaf
sign in (or out)
- to announce the end of broadcasting, as for the day, and stop transmitting
- sign off on (see phrase below)
sign off on
- to engage (oneself or others) for employment; hire or be hired, esp. by a signed agreement
- Informal to go along with a plan, etc., as in the capacity of a partner or participant
- to announce the beginning of broadcasting, as for the day, and start transmitting
- sign on
- to enlist, enroll, etc.
under the sign of