1 [uncountable and countable]the feeling you get when you are afraid or worried that something bad is going to happenCOLLOCATIONS COLLOCATIONS fear that your deepest/worst/greatest fear irrational fear (=a fear that is not reasonable or based on logic) groundless fear (=a fear that you need not have because what you are afraid of does not happen) deep-seated fear (=a very strong fear that is difficult to change) in fear (of something) be in fear of/for your life (=afraid that you may be killed) be/live in fear (of something) (=be always afraid of something) without fear (of something) trembling/shivering/shaking with fear paralysed with fear (=so afraid that you cannot move) confirm somebody's fears (=show that what you are afraid of has happened) allay/dispel somebody's fears (=stop someone from being afraid) somebody's hopes and fears
WORD CHOICE: WORD CHOICE: fear, afraid, frightenedfear (noun) is the feeling of being afraid. Do not say that you 'have fear'. Use be afraid or be frightened• My whole body was paralysed with fear. • She was suddenly very afraid. • We were too frightened to speak.The verb to fearis used mainly in literature or newspapers, and not usually in speech• She feared that he would not be found alive.• Fearing more riots, the government made concessions.It is more usual to say that someone is afraid or is frightened• My parents are afraid that I'll get involved with drugs. • People were frightened of being mugged.
Definition from the Longman Dictionary of Contemporary English Advanced Learner's Dictionary.