Cylinder and High hat

Cylinder noun - A surface generated by rotating a parallel line around a fixed line.

High hat and cylinder are semantically related. In some cases you can replace phrase "High hat" with "Cylinder", this terms are similar.

High hat noun - A man's hat with a tall crown; usually covered with silk or with beaver fur.

Cylinder and high hat are semantically related. Sometimes you can use "Cylinder" instead a noun phrase "High hat".