Definition of "eighteen" []

• The cardinal number equal to 17 + 1. (noun)
• The 18th in a set or sequence. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Eleven times eighteen is 198. 37 times 463 is 17,131."
• "(“There is nothing about resilience that I can say that my father did not first utter silently in eighteen years of living inside a two-dimensional cutout of himself.”)"
• "Which means that in eighteen days I have used the web more than most folks."