polka-dot

US /ˈpoʊ.kə ˌdɑːt/
UK /ˈpoʊ.kə ˌdɑːt/
1.

chấm bi

one of a large number of small, round spots that are printed in a regular pattern on cloth, etc.:

:
These traditionally prim blouses are making a modern comeback in bright polka dots and eccentric florals.
1.

chấm bi

having a pattern of polka dots:

:
Many of the rooms have brightly colored walls and polka dot curtains.