[ˈsʌdn], (Adjective)

Definitions:
- occurring or done quickly and unexpectedly or without warning
(e.g: a sudden bright flash)


Phrases:
- all of a sudden
- on a sudden

Origin:
Middle English: from Anglo-Norman French sudein, from an alteration of Latin subitaneus, from subitus ‘sudden’

[ˈsʌdn], (Adverb)

Definitions:
- suddenly
(e.g: sudden there swooped an eagle downward)


Phrases:
- all of a sudden
- on a sudden

Origin:
Middle English: from Anglo-Norman French sudein, from an alteration of Latin subitaneus, from subitus ‘sudden’