unsigned

noun

1. a token; indication.
2. any object, action, event, pattern, etc., that conveys a meaning.
3. a conventional or arbitrary mark, figure, or symbol used as an abbreviation for the word or words it represents.
4. a motion or gesture used to express or convey an idea, command, decision, etc.: Her nod was a sign that it was time to leave.
5. a notice, bearing a name, direction, warning, or advertisement, that is displayed or posted for public view: a traffic sign; a store sign.
6. a trace; vestige: There wasn’t a sign of them.
7. an arbitrary or conventional symbol used in musical notation to indicate tonality, tempo, etc.
8. Medicine/Medical. the objective indications of a disease.
9. any meaningful gestural unit belonging to a sign language.
10. an omen; portent: a sign of approaching decadence.
11. sign of the zodiac.
12. sign language(def 1).
13. Usually signs. traces, as footprints, of a wild animal.
14. Mathematics.
    1. a plus sign or minus sign used as a symbol for indicating addition or subtraction.
    2. a plus sign or minus sign used as a symbol for indicating the positive or negative value of a quantity, as an integer.
    3. multiplication sign.
    4. division sign.
    5. a symbol, as  or !, used to indicate a radical or factorial operation.

verb (used with object)

15. to affix a signature to: to sign a letter.
16. to write as a signature: to sign one’s name.
17. to engage by written agreement: to sign a new player.
18. to mark with a sign, especially the sign of the cross.
19. to communicate by means of a sign; signal: He signed his wish to leave.
20. to convey (a message) in a sign language.
21. Obsolete. to direct or appoint by a sign.

verb (used without object)

22. to write one’s signature, as a token of agreement, obligation, receipt, etc.: to sign for a package.
23. to make a sign or signal: He signed to her to go away.
24. to employ a sign language for communication.
25. to obligate oneself by signature: He signed with another team for the next season.

Verb Phrases

26. sign away/over, to assign or dispose of by affixing one’s signature to a document: She signed over her fortune to the church.
27. sign in, to record or authorize one’s arrival (or departure) by signing a register.Also sign out.
28. sign off,
    1. to withdraw, as from some responsibility or connection.
    2. to cease radio or television broadcasting, especially at the end of the day.
    3. Informal.to become silent: He had exhausted conversation topics and signed off.
    4. to indicate one’s approval explicitly if not formally: The president is expected to sign off on the new agreement.
29. sign on,
    1. to employ; hire.
    2. to bind oneself to work, as by signing a contract: He signed on as a pitcher with a major-league team.
    3. to start radio or television broadcasting, especially at the beginning of the day.
    4. Computers.log1(def 17a).
30. sign up, to enlist, as in an organization or group; to register or subscribe: to sign up for the navy; to sign up for class.

adjective

1. not signedan unsigned typewritten note
2. not having a plus or minus sign
3. computing not having a bit representing a plus or minus sign

noun

1. something that indicates or acts as a token of a fact, condition, etc, that is not immediately or outwardly observable
2. an action or gesture intended to convey information, a command, etc
3. 1. a board, placard, etc, displayed in public and inscribed with words or designs intended to inform, warn, etc
   2. (as modifier)a sign painter
4. an arbitrary or conventional mark or device that stands for a word, phrase, etc
5. maths logic
   1. any symbol indicating an operationa plus sign; an implication sign
   2. the positivity or negativity of a number, quantity, or expressionsubtraction from zero changes the sign of an expression
6. an indication or vestigethe house showed no signs of being occupied
7. a portentous or significant event
8. an indication, such as a scent or spoor, of the presence of an animal
9. med any objective evidence of the presence of a disease or disorderCompare symptom (def. 1)
10. astrology Compare sign of the zodiac

verb

11. to write (one’s name) as a signature to (a document, etc) in attestation, confirmation, ratification, etc
12. (intr often foll by to) to make a sign; signal
13. to engage or be engaged by written agreement, as a player for a team, etc
14. (tr) to outline in gestures a sign over, esp the sign of the cross
15. (tr) to indicate by or as if by a sign; betoken
16. (intr) to use sign language

n.early 13c., “gesture or motion of the hand,” especially one meant to communicate something, from Old French signe “sign, mark,” from Latin signum “identifying mark, token, indication, symbol; proof; military standard, ensign; a signal, an omen; sign in the heavens, constellation,” according to Watkins, literally “standard that one follows,” from PIE *sekw-no-, from root *sekw- (1) “to follow” (see sequel). Ousted native token. Meaning “a mark or device having some special importance” is recorded from late 13c.; that of “a miracle” is from c.1300. Zodiacal sense in English is from mid-14c. Sense of “characteristic device attached to the front of an inn, shop, etc., to distinguish it from others” is first recorded mid-15c. Meaning “token or signal of some condition” (late 13c.) is behind sign of the times (1520s). In some uses, the word probably is a shortening of ensign. Sign language is recorded from 1847; earlier hand-language (1670s). v.c.1300, “to make the sign of the cross,” from Old French signier “to make a sign (to someone); to mark,” from Latin signare “to set a mark upon, mark out, designate; mark with a stamp; distinguish, adorn;” figuratively “to point out, signify, indicate,” from signum (see sign (n.)). Sense of “to mark, stamp” is attested from mid-14c.; that of “to affix one’s name” is from late 15c. Meaning “to communicate by hand signs” is recorded from 1700. Related: Signed; signing. n.

1. An objective finding, usually detected on physical examination, from a laboratory test, or on an x-ray, that indicates the presence of abnormality or disease.

1. A body manifestation, usually detected on physical examination or through laboratory tests or xrays, that indicates the presence of abnormality or disease. Compare symptom.
2. See symbol. See Table at symbol.

In addition to the idioms beginning with sign

sign in

sign off

sign on

sign one’s own death warrant

sign on the dotted line

sign out

sign over

sign up

, see

high sign

show signs of