hailer

hailer — noun

1. A person who shouts or makes a signal to attract someone's attention. The word a

1.名詞C1
釋義

A person who shouts or makes a signal to attract someone's attention. The word also refers to an electronic loudspeaker device used to send a voice message over a distance.

例句

Kenji picked up the hailer and called across the warehouse for help.

collocation: pick up a hailer

Lara, the hailer on the dock, waved both arms to guide the ferry into its slip.

person sense: signal with hand gestures

同義詞
  • caller

    more general — anyone who calls out or telephones; does not imply a loud voice

  • shouter

    informal; suggests the person is yelling

  • announcer

    a professional role (radio, events); not used for devices

文法句型

a + hailer

用法筆記

Can refer to either a person (someone who shouts or gestures to get attention) or a device (an electronic loudspeaker system). The device sense is more common in modern usage, especially in industrial or marine settings.

常見錯誤

❌He used a hailer to hail a taxi.
✅He hailed a taxi by waving his hand.
💡A hailer (device) is a loudspeaker; the verb 'to hail' is the action of calling or waving at someone.