suddenly
definition: quickly and without warning
example: They stopped suddenly.
speech part: adverb
synonyms:
abruptly
definition: happening unexpectedly
example: Suddenly, I felt a sharp pain in my side.
speech part: adverb
synonyms:
all of a sudden
of a sudden
definition: on impulse
example:
speech part: adverb
synonyms:
on the spur of the moment