This chef's knife is essential in a professional kitchen.

I used a steak knife to cut the steak.

The bread knife is very sharp.

The butter knife is perfect for spreading butter on bread.

The fish-knife is very sharp.

Oyster knives are essential for opening oysters.

I used an oyster knife to open the oysters.

I bought some fruit knives yesterday.

I cut the fruits with a fruit knife.

I bought some palette knives for the kitchen.