Definition of year:

• Age or old age. The lunar year, the space of twelve lunar months. The bissextile, or leap- year, a year occurring every fourth year of 366 days, when February has 29 days, instead of 28. The Sabbatic year, among the Israelites, every seventh year, when their land was suffered to lie untilled. The great year, the time in which the fixed stars make a revolution.
• The period of time, determined by astronomical observations, in which the sun moves through the twelve signs of the ecliptic, or whole circle, and returns to the same point; the so- called tropical or solar year, which comprehends twelve calendar months, or 365 days, 5 hours, 48 minutes, and 49 7- 10ths seconds; the time in which any planet completes a revolution; the great year, see Infra.
• The period of time determined by one revolution of the earth round the sun, which it accomplishes in about 365 1/ 4 days; the period commencing on 1st January, and ending 31st December.