Meanings
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1
noun
historical: a school exercise book containing models of handwriting for a pupil to copy
The child practiced each copperplate letter in a ruled copybook.
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2
adj
done perfectly according to established rules or serving as a conventional model
The striker finished the move with a copybook header into the corner of the net.
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3
adj
conventional, stereotyped, or unoriginal
The speech ended with a copybook appeal to duty and sacrifice.
Thesaurus
Etymology
A compound of copy + book, recorded from the sixteenth century. It first named a book of handwriting models or exercises. Because pupils copied ideal forms from it, attributive copybook later came to mean perfectly conventional or, in a critical sense, stereotyped and unoriginal.