the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun; "a Martian year takes 687 of our days"
a period of time containing 365 (or 366) days; "she is 4 years old"; "in the year 1920"
a period of time occupying a regular part of a calendar year that is used for some particular activity; "a school year"
having a horn or horns or hornlike parts or horns of a particular kind; "horned viper"; "great horned owl"; "the unicorn--a mythical horned beast"; "long-horned cattle"