"textbook" in the noun sense
1. textbook, text, text edition, schoolbook, school text
a book prepared for use in schools or colleges
"his economics textbook is in its tenth edition"
"the professor wrote the text that he assigned students to buy"
"textbook" in the adjective sense
1. casebook, textbook
according to or characteristic of a casebook or textbook typical
"a casebook schizophrenic"
"a textbook example"
Source: WordNet® (An amazing lexical database of English)
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