What does blackboard mean in crosswords?

blackboard means: sheet of slate; for writing with chalk

Which crossword clues can have blackboard as the answer?

Possible clues for blackboard include "Chalk surface", "Chalk writing surface".

Word entry · 10 letters

Best crossword clue

"Chalk surface"

10 letters · collected on this word page

10 lettersPronunciation /ˈblækbɔɹd/Part of speech nounSorted aabbcdklorStarts with BEnds with D2 cluesCommon crossword word

1B2L3A4C5K6B7O8A9R10D

From black + board, because such surfaces were once typically made of black slate.

Source: Wiktionary, CC BY-SA 4.0

01“Chalk surface”10 letters

02“Chalk writing surface”10 letters

Not quite right?

B_________