Meaning of SYNC in English

SYNC

I. sync 1 BrE AmE , synch /sɪŋk/ noun

[ Date: 1900-2000 ; Origin: synchronization ]

1 . in sync (with something/somebody)

a) if things are in sync, they are working well together at exactly the same time and speed

be/move/work in sync

The two mechanisms have to work in sync.

The soundtrack is not quite in sync with the picture.

b) matching or in agreement:

a celebrity who is in sync with young people’s lifestyles

The President is in sync with Thompson’s views on many issues.

2 . out of sync (with something/somebody)

a) if things are out of sync, they are not working well together at exactly the same time and speed

b) not matching or not in agreement

II. sync 2 BrE AmE , synch ( also sync something ↔ up ) verb [intransitive and transitive]

to arrange for two or more things to happen at exactly the same time, or to happen at the same time or in the same way as something else SYN synchronize :

The hardest part was syncing the music to the video.

Wait for the computer to synch up with your command.

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.