Thirty

• (n.) The sum of three tens, or twenty and ten; thirty units or objects. • (n.) A symbol expressing thirty, as 30, or XXX. • (a.) Being three times ten; consisting of one more than twenty-nine; twenty and ten; as, the month of June consists of thirty days.
Found on http://thinkexist.com/dictionary/meaning/thirty/

thirty

30 adjective being ten more than twenty
Found on https://www.encyclo.co.uk/local/20974

Thirty

Thir'ty adjective [ Middle English thritty , Anglo-Saxon þrītig , þrittig ; akin to Dutch dertig , German dreissig , Icelandic þrjātīu , þrjātigi , þrir teger , Goth. þreis tig...
Found on http://www.encyclo.co.uk/webster/T/46

Thirty

Thir'ty noun ; plural Thirties 1. The sum of three tens, or twenty and ten; thirty units or objects. 2. A symbol expressing thirty, as 30, or XXX.
Found on http://www.encyclo.co.uk/webster/T/46

Thirty

A numeral indicating the conclusion of a take of copy. (courtesy of John E McIntyre)
Found on http://www.journalism.co.uk/terms-definitions-dictionary-terminology-words/

Thirty

Thirty is journalism slang for the end.
Found on http://www.probertencyclopaedia.com/browse/ZT.HTM

thirty

[adj] - being ten more than twenty 2. [n] - the cardinal number that is the product of ten and three
Found on http://www.webdictionary.co.uk/definition.php?query=thirty
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