What part of speech is the word roundel?

"Roundel" can be a few different parts of speech, depending on how it's used:

* Noun: This is the most common usage. A roundel is a circular or oval ornament, typically made of metal or stone.

* Example: "The church window featured beautiful stained glass roundels."

* Verb: This usage is less common. It means to make something round.

* Example: "The baker roundeled the dough before baking."

* Adjective: While not as common as the noun, roundel can also be used as an adjective meaning "round."

* Example: "The old castle had a roundel tower."

To determine the part of speech, you need to consider the context in which it is used.