slate
/sleɪt/ adjective C2- Having the bluish-grey colour of slate (noun etymology 1, noun sense 4).
From the library
But Ruby Gillis says she saw him writing something on her slate and when Prissy read it she blushed as red as a beet and giggled; and Ruby Gillis says she doesn’t believe it had anything to do with the lesson.”
At once the cap changed to a slate, on which was written in big, white chalk marks:
The little old woman took the slate from her nose, and having read the words on it, asked, “Is your name Dorothy, my dear?”
Phillips said my spelling was disgraceful and he held up my slate so that everybody could see it, all marked over.
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