sync

/sink/ , vi. (var.: synch ) 1. To synchronize, to bring into
synchronization. 2. [techspeak] To force all pending I/O to the disk; see
flush , sense 2. 3. More generally, to force a number of competing processes
or agents to a state that would be safe if the system were to crash; thus,
to checkpoint (in the database-theory sense).

