means a periodical publication, usually illustrated and stapled or bound, containing articles, stories, and advertisements on a particular subject or for a general audience.

from From the Arabic 'makhzan,' meaning 'storehouse,' which traveled into Italian as 'magazzino' and then into French as 'magasin' — a place where things were stored. English borrowed it for an ammunition store (the magazine of a gun still holds its cartridges), and then in the 18th century someone clever applied the word metaphorically: a 'magazine' became a storehouse of information and miscellany between two covers. So your glossy gossip rag and a rifle's clip share the same warehouse roots.