The term "blackboard" is a compound word formed by combining two separate words: "black" and "board." It is a closed compound word, where the two words are fused together to create a single word with a specific meaning. In this case, it refers to a surface typically used for writing or drawing in educational settings.
Board
Board
board
over board
card+board hard+board head+board cup+board
Board
Board
board
over board
A compound word with chalk is chalkboard.
no!
card+board hard+board head+board cup+board
board
whiteboard
white board blackboard cardboard wallboard cement
blackbirdblackboardblackheadblacklistblackmailblackoutblacktop
boardwalk boardroom