Sign
Part of speech: verb
Definition: To write one's signature on (a document), thus showing authorship. To give legal consent by writing one's signature. To persuade to sign a contract. To write one's signature somewhere. To give autographs. To communicate using sign language.
Part of speech: noun
Definition: A visible indication. A clearly visible object, generally flat, bearing a short message in words or pictures. A traffic sign. A meaningful gesture. Any of several specialized non-alphabetic symbols. An astrological sign. Positive or negative polarity. A linguistic unit in sign language equivalent to word in spoken languages. sign language in general An omen. A property of the body that indicates a disease and, unlike a symptom, is unlikely to be noticed by the patient.
Example sentence: An escalator can never break: it can only become stairs. You should never see an Escalator Temporarily Out Of Order sign, just Escalator Temporarily Stairs. Sorry for the convenience.
Signboard
Part of speech: noun
Definition: A board carrying a sign, or on which signs may be posted.