i know this sounds kinda slow but im looking for lock and key charms for a necklace and they came up as pendents and charms and i dont see any differance between the two

i think that charms go on a braclet and pendants go on a necklace or sometimes they are like a broach. also pendant is not a very common term used today.

Charms typically are metal only. Pendants have stones of some sort in them (diamonds, emeralds, etc.) Also, in our store, pendants come on chains, whereas charms are just the charm itself.