What does "top hat" mean?

A man's formal hat, with a tall cylindrical crown (often of silk).

What is a synonym for "top hat"?

Common synonyms include: beaver, cap, dress hat, hat, high hat, opera hat.

noun

noun ·Rare ·Advanced level

Noun

1
A man's formal hat, with a tall cylindrical crown (often of silk).
2
a man's hat with a tall crown; usually covered with silk or with beaver fur wordnet
3
A kind of steel batten.
"The car body is a light steel shell fabricated by welding from top-hat, channel, and Z sections."

"The car body is a light steel shell fabricated by welding from top-hat, channel, and Z sections."