sync
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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).

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