Answer: SYNC

AnswerCrossword Clue
SYNCTogether, after "in"
SYNCLip-..
SYNCAccord
SYNCCause to coincide
SYNCMatch
SYNCPop music's 'N ..
SYNCPop music's 'N..
SYNCLip-..: mouth the words
SYNCIn ..: harmonious
SYNCOut of ..: discordant
SYNCiPad-to-iMac activity
SYNCCoincident condition
SYNCLip-...
SYNCIn ... (harmonious)
SYNCIn ... (running smoothly)
SYNCLip attachment?
SYNCOut of ... (not together)
SYNC"Bye Bye Bye" band 'N ...
SYNCLip-... (pretend to sing)
SYNCCoordination
syncto cause to operate in unison, also SYNCH
SYNCMatch sound to action, in film work
SYNCN .. (hot singing group)
SYNCIn .., as one
SYNCIn ... (all together)
SYNCOut of: (uncoordinated)
SYNCRhythmic accord
SYNCCome together?
SYNCCoordination, for short
SYNCHarmonization
SYNCUse a Dropbox function
SYNCHarmony
SYNCMatch sound to action
SYNCIn ...: harmonious
SYNCLip- ...
SYNCMatch audio and video
SYNCPop music's 'N ...
SYNCIn ..: running smoothly
SYNCMake harmonious
SYNCOut of ..: amiss