Roundel (noun)

1. A circular shape or design, often used as a symbol or emblem.
2. A type of musical composition in which a main theme is repeated several times, with variations.
3. A circular target used in archery, shooting or in flight training.

Origin:

The word "roundel" comes from the old french word "rondel", which means "small round thing".

Examples:

1. The emblem on the shield was a gold roundel surrounded by a border of silver.
2. The roundel in the center of the room was a beautiful stained glass design.
3. The roundel in the painting was a symbol of the sun and life.
4. The composer's roundel was a masterpiece of musical craftsmanship, with intricate variations on the main theme.
5. The archer aimed at the roundel in the center of the target, determined to hit the bullseye.