Cellular signaling is essential for coordinating development in multicellular organisms.

The lifeguard was signaling swimmers to return to shore.

The team's subtle signalings during the game confused the opponents.

The watchman hoisted the red signall to warn the fleet of the fog.

The old watchman would signall from the tower when ships approached the harbor.

The red flag signalizes danger to anyone approaching the cliff.

She signalized the end of the rehearsal by turning off the lights.

She signalled to the driver to stop when the children were crossing the road.

During the drill, the captain was signalizing the evacuation route with a flashlight so everyone could see where to go.

Her signal achievement reshaped the field of renewable energy.