1. 
[syn: textbook, text, text edition, schoolbook, school text]
The Collaborative International Dictionary of English v.0.48:
Schoolbook \School"book`\, n.
   A book used in schools for learning lessons.
   [1913 Webster]
WordNet (r) 3.0 (2006):
schoolbook
    n 1: 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" [syn:
         textbook, text, text edition, schoolbook, school
         text] [ant: trade book, trade edition]
Moby Thesaurus II by Grady Ward, 1.0:
18 Moby Thesaurus words for "schoolbook":
   abecedarium, abecedary, alphabet book, battledore, casebook,
   exercise book, gradus, grammar, hornbook, manual,
   manual of instruction, primer, reader, speller, spelling book, t,
   text, workbook