le tableau noir
The word for chalk is "craie" and a chalkboard is "tableau noir" (blackboard).
le tableau, le tableau noir
blacksmith
Effacez le tableau noir.
The noun 'blackboard' is a singular, common, concrete, compound noun; a word for a sheet of smooth, hard material (often dark slate), used in schools and lecture rooms for writing on with chalk; a word for a thing.
There was the DIVIDEND on the blackboard
Sure, here is a sentence with underline: I always use a ruler to draw a straight line.
green board
dgdgh
Yes, whiteboard is one word, like blackboard.
white board blackboard cardboard wallboard cement
Blackguard, blackboard, blackberry, blacksmith...