Tremble with fear is an expression used to describe a feeling of intense fear or anxiety. The crossword solutions for this term are QUAKE (5 letters), SHUDDER (7 letters), PALPITATE (9 letters) and COWER (5 letters). QUAKE is a verb meaning to shake or vibrate, usually due to an earthquake or other natural phenomenon. SHUDDER is a verb meaning to shake or tremble with fear or revulsion. PALPITATE is a verb meaning to beat rapidly and irregularly, often due to fear or excitement. Finally, COWER is a verb meaning to shrink back in fear or submission.