Oxford School Dictionary of Word Origins
Some dictionaries are rather dull. Children connect them with spelling tests. This one is fascinating: OXFORD SCHOOL DICTIONARY OF WORD ORIGINS edited by John Ayto.
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Oxford Afrikaans-English/English-Afrikaans Skoolwoordeboek/School Dictionary
This is a dictionary all pupils should have if they want to write and speak better Afrikaans or English.
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Oxford Advanced Learner’s Dictionary : International Student’s 7th Edition
As an English language graduate and journalist for many years, English has been a daily working medium for me, with dictionaries my indispensable tools. But, wow, the Oxford Advanced Learner’s Dictionary (OALD) is a cut above the countless wordbooks I’ve used!
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