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year-round
bissextile year
a year with an extra day, a leap year
tropical year
The time that it takes for the Sun to return to the same position along the ecliptic, as viewed from the Earth, especially: / A vernal equinox year, the time between two successive vernal equinoxes.
dog year
(informal) A period of time in the life of dogs, defined such that the average life expectancy of a dog in "dog years" is numerically equivalent to the average life expectancy of a human. A 4- and a 5-year-old dog are about as mature as a human of 28 to 30 years and 33 to 35 years, respectively. The most common calcuation uses a ratio of seven dog years to one human year.
lunar year
a year determined by a certain number of phases of the moon, as opposed to the passage of the Earth around the sun
sidereal year
The orbital period of the Earth; a measure of the time it takes for the Sun to return to the same position with respect to the stars of the celestial sphere. A sidereal year is about 20.4 minutes longer than the tropical year (which is what is kept stable by the Gregorian calendar) due to precession of the equinoxes.
man-year
One person's working time for a year, or the equivalent, used as a measure of how much work or labor is required or consumed to perform some task.
Theban year
The ancient Egyptian year of 365 days and six hours.
dragon year
(Singapore) A year that corresponds with the fifth animal sign in the Chinese zodiac and occurs once every 12 years.
ruins of the year
plural of ruin of the year