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thirtieth

 - 2 dictionary results

thir⋅ti⋅eth

  [thur-tee-ith]
Use thirtieth in a Sentence
–adjective
1. next after the twenty-ninth; being the ordinal number for 30.
2. being one of 30 equal parts.
–noun
3. a thirtieth part, esp. of one ( 1/30 ).
4. the thirtieth member of a series.
Origin:
bef. 900; thirty + -eth 2 ; r. ME thrittythe, OE thrītegtha
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To thirtieth
thir·ti·eth   (thûr'tē-ĭth)   
n.  

  1. The ordinal number matching the number 30 in a series.

  2. One of 30 equal parts.

thir'ti·eth adv. & adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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