Knife is a tool with a cutting edge or blade, typically used for cutting or slicing.
The word "knife" can also be used as a verb meaning to stab someone with a knife.
Common types of knives include:
1. Chef's knife - for food preparation
2. Pocket knife - a foldable knife for everyday carry
3. Butter knife - a dull knife for spreading butter
4. Hunting knife - used for field dressing game