Go down Very Common

move downward and lower, but not necessarily all the way

"The temperature is going down"

"The barometer is falling"

"The curtain fell on the diva"

"Her hand went up and then fell again"

go under

"The raft sank and its occupants drowned"

grow smaller

"Interest in the project waned"

be recorded or remembered

"She will go down as the first feminist"

be ingested

"This wine sure goes down well"

"The food wouldn't go down"

be defeated

"If America goes down, the free world will go down, too"

disappear beyond the horizon

"the sun sets early these days"

stop operating

"My computer crashed last night"

"The system goes down at least once a week"

Used other than figuratively or idiomatically: see go,‎ down.