Minecraft wiki entry for Texture_Pack_(disambiguation), associated text: Resource pack, the current mechanism used to customize textures and other assets in Java Edition
Texture pack/DLC, downloadable replacement textures in Bedrock and Legacy Console editions
Resource pack/Mash-up pack, used in Legacy Console Edition, Bedrock Edition & New Nintendo 3DS Edition as the equivalent of a resource pack
Skin pack, downloadable replacement textures for player skins in Bedrock and Legacy Console editions
Add-on, the mechanism used to customize textures and player skins in Bedrock and Legacy Console editions