Thesaurus Comes from Greek thesauros, meaning"storehouse, treasury," and its original sense was"dictionary or encyclopedia," but this wasnarrowed to the current meaning with theappearance of Rogets in 1852.
First English language thesaurus(the Rogets Thesaurus) wascreated in 1852 by the UK surgeonDr. Peter Mark Roget (1779-1869).The term is derived from the Greekword thesauros, treasure.
Unlike a dictionary (which is organized to help infinding the meaning if you know the word), athesaurus requires you to know the intended meaningto help find the correct word. Unlike a dictionary of synonyms (which is analphabetical list of related words) a thesaurusis structured around ideas and serves as atreasury of knowledge.Thesaurus differs from aDictionary…
A thesaurus makes a handy composing tool whenyou need to find another word to keep fromsounding repetitious or boring.A reference book organize to help infinding words related to a core concept but havingdifferent shades of meaning (connotations).
Synonyms The word “synonym” is a composite of twoGreek words: The prefix “syn” means“together” and “onym” is “name.” Synonyms— together naming the same thing. A synonym is a word or expression that hasthe same or almost the same meaning asanother word or expression.Synonyms are words that are similar or havea related meaning to another word.
AntonymAn antonym is a word that is theopposite meaning of another. It comesfrom the Greek words “anti” foropposite and “onym” for name. Sincelanguage is complex, people may attimes, disagree on what words aretruly opposite in meaning to otherwords.
ATLASAn atlas is a collectionof maps; it istypically a map ofEarth or a region ofEarth, but there areatlases of the otherplanets (and theirsatellites) in thesolar system.
An atlas is a collection of maps compiled into aneasy-to-use format. It usually has anaccompanying gazetteer, which is an alphabeticallisting of place names and their pronunciations.Atlases may be general in nature and cover theentire globe, or they may be specific togeographical locations, topics or time periods.
Uses of an Atlas…1.Finding place in the map2.Measuring distances3.Determine direction4.Understand map symbols
1. Choose an atlas that has the information you need.If you need current maps, an historical atlas is notthe best choice.2. Make sure the copyright is current, if you use anatlas for driving directions. Road map atlasesbecome dated within a matter of years.3. Determine the layout of the atlas. Look at theintroductory material. Note the basic geographicaldefinitions you are given. This helps you interpretthe maps.4. Study the key or legend to the maps. Each publisheruses different symbols, so its important to knowwhat you are looking at on the maps.
5. Use the table of contents to find maps for yourresearch. You can find entire groups of maps youcan use here.6. Reference the index or gazetteer too. This isnormally found in the back of the atlas, althoughsome publishers place it in the introductorysection. The index or gazetteer gives the pagenumbers of the maps you are looking for. Alongwith the pronunciation of the place name, itgives you longitude and latitude coordinates aswell.
Just like the Atlas, May we bean instrument to guide ourfuture students toward theright direction and rightpath.God Bless Us!
References:http://www.businessdictionary.com/definition/thesaurus.htmlhttp://www.ehow.com/facts_5587497_antonym-definition.htmlhttp://www.vocabulary.co.il/synonym_vocabulary/Merriam Webster Thesaurus(c) 2002How to Use an Atlas | eHow.comhttp://www.ehow.com/how_2069524_use-atlas.html#ixzz25LbvGdhl