(MEGabyte, MEGabit, MEGahertz, etc.). Common slang for some "mega" (million) measurement. The terms "megabits" and "megabytes" are often erroneously interchanged. For details about correct usage, see space/time. See mega and gig.
(slang) Common abbreviation for many/any unit having the SIprefix mega-, such as megahertz.
(computing) - My new computer has over 500 megs of RAM. = megabyte.
(radio) - "What frequency does Radio XYZ broadcast on ?" "105.7 meg" = megahertz.