Commonly confused for a Magazine. Technically, a clip retains ordinance and has no moving parts. The SKS and M44 uses stripper clips, the M1 Garand uses clips, and you can even get clips for your Mini-14 or AR-15 to quickly load your hi-cap magazine. Realistically, the words are interchangeable, but if you insist on calling a magazine a clip, look forward to being frequently corrected.
(n.) A device used to rapidly load a magazine. "Clip" is often used to refer to a magazine, but this is an improper use of the term. There are two kinds of clips: Stripper clips and en bloc clips: Stripper clips hold 5 to 10 rounds of ammunition by their bases. To load the magazine, the clip is placed in a guide which is either a part of the gun, or a separate guide which slips onto the magazine. Weapons which may be loaded from stripper clips include the Lee-Enfield series of rifles, Mosin-Nagant Rifles, the M1903 Springfield, and the Mauser 1898. The Steyr-Hahn M1911 and Mauser "Broomhandle" semiautomatic pistols also use stripper clips. Stripper clips are also called "chargers." En bloc clips hold the cartridges together by their bases and their bodies; the clip and the rounds are inserted into the magazine as a unit. When the last round is loaded, the clip is automatically ejected from the magazine. Weapons loaded with en bloc clips include the Steyr-Mannlicher straight pull bolt action, the Mannlicher-Carcano rifles, and the US M1 Garand. (In the M1, the clip is ejected up after the last round is fired.)