24

from the GNU version of the Collaborative International Dictionary of English.

• adjective one more than twenty-three; denoting a quantity consisting of twenty-four items or units; -- representing the number twenty-four as Arabic numerals.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The cardinal number twenty-four.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the cardinal number that is the sum of twenty-three and one
• adjective being four more than twenty