Words similar to signalled

Example sentences for: signalled

How can you use “signalled” in a sentence? Here are some example sentences to help you improve your vocabulary:

By using two different reversal tasks in which different facial expressions signalled that behaviour must change, we were able to determine which brain areas were specific to general reversal learning, rather than just to reversal following a particular expression, such as anger.
This person thus no longer smiled when selected, but instead changed to a facial expression that signalled that he/she should no longer be selected.
Life threatening agitation is usually signalled by escalating musculoskeletal hyperactivity in the face of increasing sedative administration.
"The flag signalled that Britain's reputation was on the line, that the wings would stay attached to the fuselage and there would be enough fuel to complete the journey.