Search Result for "18th": 
Wordnet 3.0

ADJECTIVE (1)

1. coming next after the seventeenth in position;
[syn: eighteenth, 18th]


The Collaborative International Dictionary of English v.0.48:

18th \18th\ adj. 1. coming next after the seventeenth in a series Syn: eighteenth [WordNet 1.5 +PJC]
WordNet (r) 3.0 (2006):

18th adj 1: coming next after the seventeenth in position [syn: eighteenth, 18th]