The signal turned red, so I stopped crossing the road.

Neologisms are a part of the evolution of language.

She is learning karate for self-protection.

The company he built was left behind after his death.

He chants a mantra every day and meditates.

He sent a message to the distant ship using flag semaphore.

She always carries a self-defense spray with her.

He was controlling traffic using hand signals as a traffic police officer.

I think his actions are a misjudgement.

He was afraid that the prophecy would come true.