You boys REALLY need to get out more if this is all you have to hash over, again and again.
Whoever said that above, I agree! Clearly there are places in these United States that are not observing nice weather. Today, here in Sandy Eggo, it was about 74 degrees, almost cloudless. Our orchid plants have twelve heavy stalks of blooms about to burst. I told my sister in Puget Sound this and she was rather unsisterly. (Perhaps I shouldn't have ended the email with "Nyah Nyah"). I also told my daughter in Toronto this, and she was a bit more respectful.
As for the topic, a "clip" holds several cartridges by their extractor grooves, one on top of the rest. With your Springfield 1903, you flip the bolt up and back, slip the lower end of the clip into the groove, shove five cartridges into the rifle's magazine, toss the clip and chamber a round. Much the same with a Lee Enfield, except it has room in the magazine for two cliploads. If the Philistines can't get the nomenclature right, well why should they? They are Philistines!
Cordially, Jack
PS -- at least I didn't say "Nyah Nyah" to ya!