ENGLISH
REFERENCE

signaling

n. · v.
US //ˈsɪɡnəɫɪŋ// sig·nal·ing
  1. 1 sending messages (n.)
    B2 Upper Intermediate American English

    the act of sending a signal or message to someone or something.

    the act or process of transmitting a signal, often in a technical or systematic context.

    Example

    The ship's signaling was clear enough for the coast guard to see.

    Example

    The railway's signaling system was upgraded to prevent collisions during periods of heavy fog or low visibility.

    Usage

    Often used as an uncountable noun when referring to a system or process.
  2. 2 biological communication (n.)
    C1 Advanced Technical Academic Science

    the way cells or parts of the body send chemical messages to each other.

    the biochemical process by which cells communicate with each other, typically via hormones or other signaling molecules.

    Example

    Scientists are studying how cell signaling affects the growth of the brain.

    Example

    Disruptions in insulin signaling can lead to significant metabolic disorders, as the body fails to regulate glucose levels effectively.

    Usage

    Commonly appears in the phrase 'cell signaling'.
    • cell communication
  3. 3 giving a sign (v.)
    B1 Intermediate American English

    showing or giving a sign to someone.

    the present participle of 'signal', indicating the act of making a sign or gesture to convey information.

    Example

    He was signaling for a taxi by waving his arm in the air.

    Example

    By signaling his intention to resign early, the CEO allowed the board ample time to vet potential internal candidates.

Last updated June 20, 2026