say it: SUHD-uhn-lee
suddenly is an adverb meaning "happening unexpectedly". It carries 3 recorded senses.
happening unexpectedly
“suddenly she felt a sharp pain in her side”
on impulse; without premeditation
“he decided to go to Chicago on the spur of the moment”
“he made up his mind suddenly”
Definitions, synonyms and semantic relations for suddenly come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.