Answer:

sank

Answer	Crossword Clue
SANK	Went down
SANK	Went to bed?
SANK	Made, as a putt

SANK	What the Titanic did
SANK	Dropped down
SANK	Foundered
SANK	Torpedoed
SANK	Went under
SANK	Made, as pool shots
SANK	Dropped to the bottom of the lake
SANK	Behaved like a lead balloon?

SANK	Dropped
SANK	Went down like a stone
SANK	Pocketed, as a pool ball
SANK	Went to the bottom
SANK	What Atlantis did
SANK	What Atlantis did, presumably
SANK	What the Lusitania did
SANK	Took on too much water

SANK	Went to Davy Jones's locker
SANK	Hit bottom
SANK	Hit the bottom of the barrel
SANK	Submerged
SANK	Went underwater
SANK	Hit the bottom
SANK	Slumped
SANK	Suffered the Titanic's fate

SANK	Registered, with "in"
SANK	Holed, as a putt
SANK	Plummeted
SANK	Declined
SANK	Defeated, in Battleships
SANK	Descended
SANK	Dipped
SANK	Dropped sharply

SANK	Lost altitude
SANK	Fell
SANK	Descended gradually
SANK	Fell gradually
SANK	Pocketed