Answer: twoone

AnswerCrossword Clue
TWOONE"Four, three, .... :" (countdown)
TWOONEPre-liftoff words
TWOONEScore in a pitcher's duel, perhaps
TWOONEWords before "Happy New Year!"
TWOONEPart of the countdown.
TWOONEEnd of a countdown
TWOONEFrequent World Cup game score
TWOONEBlastoff lead-in
TWOONEWords before "blastoff"