noun
sequin
SEE-kwin/ˈsiːkwɪn/
A small shiny disk attached to clothing for decoration.
A silver sequin sparkles on the collar of her dress.

Etymology
The coin name became a word for a decorative spangle. Venetian gold coins were perforated and worn as jewelry, connecting actual money used as ornament with the small shiny discs sewn onto clothing.
In context
sequin fabric can come in a variety of shapes, sizes, colors,
More examples
- She sews a red sequin onto the costume.
- The sequins on his jacket catch the stage lights.
- A loose sequin falls from the dancer's skirt.
Forms
sequin · sequins
sequined adjective — Decorated with small, shiny disks.
Similar words
- spangle
- A small, shiny decoration, not necessarily a round disk.