unison

The props turn slowly in unison—calibrating, calibrating—then spool furiously, a squadron of lawn mowers on deck.

Under her firm hand, my classmates and I marched through our ABCs in unison, voicing each letter like an orchestra tuning for a show.

Much of Mr. Roberts’s movement for that quartet of dancers, despite some upper-body torsioning and unison pacings, presents repeated articulations for their arms, suggesting the flapping of wings, which grows monotonous.

“A protector,” he mutters to himself in unison.

That is only possible with a network of computers working in unison and in extremely close proximity.