a stage in a process or sequence of actions; a procedure

occurring very quickly and without warning; abruptly

to fall or drop suddenly and rapidly

a violent wind and heavy rainstorm; a tempest or hurricane

a sudden heavy shower

to change suddenly or abruptly

step by step; proceeding through a process or plan in distinct stages

strong wind and heavy rain (idiom)

sudden death style play-off (sporting competition)

sudden death (play-off in sporting competition)

to decrease rapidly; to plummet