Học từ vựng | Vocabulary learning |signal


signal (n)

/ˈsɪɡ.nəl//ˈsɪɡ.nəl/

an action, movement, or sound that gives information, a message, a warning, or an order

tín hiệu

signal.jpg
The coach blew his whistle as a signal to begin the game.
The traffic light turned red, serving as a clear signal to stop.
A loud horn served as a warning signal for the approaching train.
The manager raised his hand as a signal for the meeting to begin.
The lighthouse provided a navigational signal for ships in the dark.

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