WHAT IS THE MEANING OF SHUDDER?

shud·der/ˈSHədər/

Verb:	(of a person) Tremble convulsively, typically as a result of fear or repugnance.
Noun:	An act of shuddering.
Synonyms:	verb.  shiver - tremble - shake - quake - quiver - thrill noun.  shiver - thrill - tremble - quiver - tremor - shake