Join (in harmony) (4)
I believe the answer is:
sync
(Other definitions for sync that I've seen before include "go together" , "Agreement in time" , "Togetherness (of sound and picture, say)" , "In which one's matching" , "Unison (abbrev.)" .)
I believe the answer is:
sync
(Other definitions for sync that I've seen before include "go together" , "Agreement in time" , "Togetherness (of sound and picture, say)" , "In which one's matching" , "Unison (abbrev.)" .)