Minecraft wiki entry for Bone_(disambiguation), associated text: Bone, an item which is dropped by fish‌[Bedrock Edition only] and skeletons, or obtained from fishing.
Bone meal, an item crafted out of bones, dropped by fish‌[Java Edition only] or from a composter which is used to grow crops quicker.
Bone block, a block crafted from 9 bone meal and generates naturally as a fossil.