Answer:

abort

Answer	Crossword Clue
ABORT	Terminate prematurely
ABORT	Cut short
ABORT	Scrub a mission

ABORT	End
ABORT	Word shouted when trying to end a mission
ABORT	Mission-stopping command
ABORT	Cancel, at NASA
ABORT	Cancel a launch
ABORT	Cancel, as a mission
ABORT	Cancel the launch
ABORT	Ends prematurely

ABORT	Cancel
ABORT	Terminate a launch
ABORT	Call off, in NASA-speak
ABORT	Scrub, as a mission
ABORT	End prematurely
ABORT	Scrub, as a space launch
ABORT	Call off
ABORT	Scrub, at NASA

ABORT	Scrub the launch
ABORT	NASA "Stop!"
ABORT	Call off the launch
ABORT	Decide not to finish
ABORT	Keep from ending normally
ABORT	End abruptly
ABORT	Scrub the mission
ABORT	Cancel, as a liftoff

ABORT	Scratch, to NASA
ABORT	Scrub, NASA-style
ABORT	Call off a launch
ABORT	Halt a missile launch
ABORT	Scrub, to NASA
ABORT	Mission-control order
ABORT	Scuttle, as a mission
ABORT	Stop, at Cape Canaveral

ABORT	Terminate early
ABORT	Call off, at Cape Canaveral
ABORT	Pull the plug on, at NASA
ABORT	Terminate before completion
ABORT	Call it quits early