signal
signalnoun
UK/ˈsɪɡnəl/US/ˈsɪɡnəl/
Dạng từ: signals
ACTION OR SOUND
B1an action, movement or sound that gives information or a message
- He gave the signal to start.
ELECTRONIC
B1a series of electrical waves that carry sounds or pictures
- I can't get a phone signal here.
SIGN
B2something that shows that something exists or is likely to happen
- This is a clear signal that the economy is improving.
signalverb
UK/ˈsɪɡnəl/US/ˈsɪɡnəl/
Dạng từ: signals · signalled · signaled · signalling · signaling
B2to make a movement or sound to give someone a message
- She signalled to the waiter.