A sign is an entity which indicates another entity.
Sign may also refer to:
Communication Signage, the use of signs and visual graphics to convey information Signature, a handwritten depiction of someone's name or other mark used as a proof of identity and intent Sign (semiotics), anything that communicates a meaning Sign language, a languages that uses the visual-manual modality to convey meaning
Mathematics Sign (mathematics), an indication of negative and positive numbers Sign function, also known as the signum function Sign of a permutation of a finite set
Organizations Project Sign, a project by the U.S. Air Force to investigate unidentified flying objects (UFOs) Scottish Intercollegiate Guideline Network, a Scottish group that develops evidence-based medical guidelines
Music Segno (), a symbol used as a navigation marker in music; translated from the Italian word "sign" Sign (band), an Icelandic band Sign (Clock DVA album), 1993 "Sign" (Mr. Children song), 2004 "Sign" (Beni Arashiro song), 2010 "Sign" (Flow song), 2010 "Sign", a 2018 song by Exo from Don't Mess Up My Tempo "Sign", a 2015 song by Girls' Generation from Lion Heart "Sign", a 2017 song by Got7 from Flight Log: Arrival "Sign", a 2001 song by Marcella Detroit from Dancing Madly Sideways "Sign", a song by Susumu Hirasawa "Sign-2", a different version of "Sign" from Berserk: Millennium Falcon Hen Seima Senki no Shō Sign (Autechre album), 2020 "The Sign" (song), a 1993 song by Ace of Base The Sign (Ace of Base album), a 1993 album by Ace of Base
Surname
Christopher Sign (19762021), American journalist
Other uses Astrological sign, one of twelve sectors of the sky in astrology Medical sign, an indication of disease, injury, or abnormal physiological state Sign (TV series), a 2011 South Korean television series
See also Signs (disambiguation) Signing (disambiguation) Signify (disambiguation) The Sign (disambiguation) Sign-Trace Sine, a trigonometric function of an angle Sine (disambiguation)