signal

signal [sig′nəl]

n.

[OFr < VL signale < neut. of LL signalis < L signum, a SIGN]

1. Now Rare a token or indication

2. a sign or event fixed or understood as the occasion for prearranged combined action [a bugle signal to attack]

3. anything which occasions a certain action or response

4.

a) a sign given by gesture, flashing light, etc. to convey a command, direction, warning, etc.

b) an object or device, as a red flag, flashing light, etc., providing such a sign

5. in some card games, a bid or play designed to guide one's partner

6. in telegraphy, radio, television, etc., the electrical impulses, sound or picture elements, etc. transmitted or received

7. [pl.] Football code words, numbers, etc. called out, esp. by the quarterback, to indicate which play or defense to use next

adj.

1. not average or ordinary; remarkable; notable

2. used as a signal or in signaling

vt.

signaled or signalled, signaling or signalling

1. to make a signal or signals to

2. to make known or communicate (information) by signals

vi.

to make a signal or signals

signaler

n.

signaller