Words similar to cue

Example sentences for: cue

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

It would appear that chlamydiae have learned to recognize and exploit tryptophan depletion as an environmental cue that initiates a distinct chain of remodeling biochemistry that promotes long-term viability in a latent state.
The billiard balls are in such and such positions on the billiard table, the cue is moved with such and such velocity and strikes a given ball in such and such a position with such and such velocity.
The heroines of Career Girls crack jokes about the people turning up from their past as if on cue: What are the chances of that?
It may just have been heat or hunger that caused one boy chorister to faint as if on cue as soon as the last chord faded during a rehearsal that morning, but it was easy to believe he had been felled by the music.
Can we ever discard a good, though unnecessary, mnemonic, or are we forever doomed to have delayed responses as these jingles, on cue, run through our heads?