[verb] restore to its uncompressed form; "decompress data" Synonyms:uncompress
[verb] decrease the pressure of; "depressurize the cabin in the air plane" Synonyms:depressurize, depressurise
[verb] become less tense, rest, or take one's ease; "He relaxed in the hot tub"; "Let's all relax after a hard day's work" Synonyms:relax, loosen up, unbend, unwind, slow down