Definitions For Sign

Structure displaying a board on which advertisements can be posted
A perceptible indication of something not immediately apparent (as a visible clue that something has happened)
Any nonverbal action or gesture that encodes a message
A public display of a message
A character indicating a relation between quantities
A gesture that is part of a sign language
A fundamental linguistic unit linking a signifier to that which is signified
An event that is experienced as indicating important things to come
(astrology) one of 12 equal areas into which the zodiac is divided
Having an indicated pole (as the distinction between positive and negative electric charges)
(medicine) any objective evidence of the presence of a disorder or disease
A piece of paper, wood, etc., with words or pictures on it that gives information about something
Something (such as an action or event) which shows that something else exists, is true, or will happen
A motion, action, or movement that you use to express a thought, command, or wish

Make the sign of the cross over someone in order to call on God for protection; consecrate
Be engaged by a written agreement
Communicate in sign language
Mark with one's signature; write one's name (on)
Communicate silently and non-verbally by signals or signs
Place signs, as along a road
Engage by written agreement
Approve and express assent, responsibility, or obligation
To write (your name) on something
To write your name on (something) especially to show that you accept, agree with, or will be responsible for something
To hire (someone) to do something especially by having that person sign a contract