intransitive verb
Definition: To experience a feeling of anxiety or worry about something that may happen.
Example: She tends to fear when she thinks about the future.
noun
Definition: A strong feeling of worry or anxiety about something dangerous or unpleasant that might happen.
Example: Her fear of heights prevented her from climbing the mountain.
transitive verb
Definition: To be afraid of something or to feel worry about it.
Example: Many people fear public speaking.