A strong, uncontrollable, unpleasant emotion or feeling caused by actual or perceived danger or threat.

“He was struck by fear on seeing the snake.”

A phobia, a sense of fear induced by something or someone.

“Not everybody has the same fears.  I have a fear of ants.”

Terrified veneration or reverence, particularly towards God, gods, or sovereigns.

To feel fear about (something or someone); to be afraid of; to consider or expect with alarm.

“I fear the worst will happen.”

To feel fear (about something).

“Never fear; help is always near.”

(used with for) To worry about, to feel concern for, to be afraid for.

“She fears for her son’s safety.”