Meaning of SIGNAL in English

I. ˈsig-n ə l noun

Etymology: Middle English, from Medieval Latin signale, from Late Latin, neuter of signalis of a sign, from Latin signum

Date: 14th century

1. : sign , indication


a. : an act, event, or watchword that has been agreed on as the occasion of concerted action

b. : something that incites to action

3. : something (as a sound, gesture, or object) that conveys notice or warning


a. : an object used to transmit or convey information beyond the range of human voice

b. : the sound or image conveyed in telegraphy, telephony, radio, radar, or television

c. : a detectable physical quantity or impulse (as a voltage, current, or magnetic field strength) by which messages or information can be transmitted

II. verb

( sig·naled or sig·nalled ; sig·nal·ing or sig·nal·ling -nə-liŋ)

Date: 1805

transitive verb

1. : to notify by a signal

signal the fleet to turn back


a. : to communicate or indicate by or as if by signals

signal ed the end of an era

b. : to constitute a characteristic feature of (a meaningful linguistic form)

intransitive verb

: to make or send a signal

• sig·nal·er or sig·nal·ler noun

III. adjective

Etymology: modification of French signalé, past participle of signaler to distinguish, from Old Italian segnalare to signal, distinguish, from segnale signal, from Medieval Latin signale

Date: 1627

: distinguished from the ordinary : notable

a signal achievement

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.