Definition of "two-year-old" []

• Two years of age (adjective)

WordNet. Princeton University. 2010.

• "Grigsby's Facebook page has white supremacist slogans on it and she calls her two-year-old son "my little Aryan warrior.""
• "Worryingly, RIM made a similar statement a year ago about the 8520, nowa nearly two-year-old pre-3G device."
• "Meanwhile, Ouija Board's second foal, a two-year-old Monsun colt, has also just been named Aegaeus, after the legendary king of Athens."