The ordinal number matching the number 11 in a series.(noun)
One of 11 equal parts.(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.
Use "eleventh" in a sentence
"-- _Stuart_ was a great eleventh hour tip -- (why _eleventh_ hour I wonder?"
""December," said he, "is surely, as its name indicates, the tenth month of the year," and he added thereto, in honor of the emperor, two others which he called the eleventh and twelfth."
"The censored books used to be read in eleventh grade."