The Australian Integrated File Oxford Dictionary & Thesaurus Is An Easy-to-use Reference Book In Ring-binder Format, With Dictionary Entries At The Top Of The Page And Corresponding Thesaurus Entries On The Lower Half.designed To Be Appropriate For Students Throughout Secondary School (ages 10 To 16), This Trusted Australian Resource Is Now Completely Revised And Updated In An Appealing And Vibrant New Edition.this Integrated Dictionary And Thesaurus Is Informed By The Lexicographical Expertise Of The Australian National Dictionary Centre, With Age-appropriate Features To Suit Students Throughout Their Secondary Schooling Years, Including:over 20,000 Dictionary Headwordsover 10,000 Thesaurus Headwordsa Handy Ring-binder Format For Ease Of Use, Clipping Into Students' Ring-binder Foldersa Grammar And Reference Guidea Design That Supports Secondary School Students To Navigate The Text With Ease.