UPS verb 2noun 4forms 3phrases 1 verb2 •(informal) To send a package or letter by UPS, or a competitor.It beats carrying the copies around. "UPSing where?" To a friend back home. With a note saying to sit on it until I pick it up." — 1995 •(nonstandard) To connect a device to an uninterruptible power supply.If you don't want to lose all your data when the power goes out, you should UPS your computer. noun4 •Initialism of uninterruptible power supply/source. •Initialism of ubiquitin-proteasome system. •Initialism of ultraviolet photoelectron spectroscopy. •(Philippines) Initialism of United Parañaque Subdivision: several subdivisions in barangays San Martin De Porres, San Isidro, BF Homes, and Marcelo Green Village, in Parañaque, Metro Manila, Philippines. formsUPSed · UPSing · UPSes Phrases with UPS ups and downsPeriods of positive and negative events, moods, or interactions; highs and lows.