Definition of "decompress" in English

verb

1. (transitive) To relieve the pressure or compression on something.

2. (transitive) To bring someone (such as a diver) back to normal atmospheric pressure after being exposed to high pressure.

3. (transitive, computing) To restore (compressed data) to its original form.

4. (intransitive) To adjust to normal atmospheric pressure after being exposed to high pressure.

5. (intransitive, informal) To relax.