Search Result：all of a sudden
all of a sudden 
(TTS Sound)
(TTS Sound)Overview of adv all_of_a_sudden
The adv all of a sudden has 2 senses
- all of a sudden, all at once -- (without warning; "all at once, he started shouting")
- suddenly, all of a sudden, of a sudden -- (happening unexpectedly; "suddenly she felt a sharp pain in her side")