Knife is a tool with a cutting edge or blade, typically used for cutting or slicing various materials.
The term "knife" can refer to:
1. Kitchen knives - used for food preparation
2. Pocket knives - foldable knives for everyday carry
3. Hunting knives - specialized for outdoor activities
4. Ceremonial knives - used in cultural or religious rituals
5. Surgical knives - precision instruments used in medicine