n. [ OE. yer, yeer, &yogh_;er, AS. geár; akin to OFries. i&unr_;r, g&unr_;r, D. jaar, OHG. jār, G. jahr, Icel. ār, Dan. aar, Sw. år, Goth. j&unr_;r, Gr. &unr_; a season of the year, springtime, a part of the day, an hour, &unr_; a year, Zend yāre year. √4, 279. Cf. Hour, Yore. ] [ 1913 Webster ]

1. The time of the apparent revolution of the sun trough the ecliptic; the period occupied by the earth in making its revolution around the sun, called the astronomical year; also, a period more or less nearly agreeing with this, adopted by various nations as a measure of time, and called the civil year; as, the common lunar year of 354 days, still in use among the Mohammedans; the year of 360 days, etc. In common usage, the year consists of 365 days, and every fourth year (called bissextile, or leap year) of 366 days, a day being added to February on that year, on account of the excess above 365 days (see Bissextile). [ 1913 Webster ]

Of twenty year of age he was, I guess. Chaucer. [ 1913 Webster ]

☞ The civil, or legal, year, in England, formerly commenced on the 25th of March. This practice continued throughout the British dominions till the year 1752. [ 1913 Webster ]

2. The time in which any planet completes a revolution about the sun; as, the year of Jupiter or of Saturn. [ 1913 Webster ]

3. pl. Age, or old age; as, a man in years. Shak. [ 1913 Webster ]

Anomalistic year, the time of the earth's revolution from perihelion to perihelion again, which is 365 days, 6 hours, 13 minutes, and 48 seconds. --
A year's mind (Eccl.), a commemoration of a deceased person, as by a Mass, a year after his death. Cf. A month's mind, under Month. --
Bissextile year. See Bissextile. --
Canicular year. See under Canicular. --
Civil year, the year adopted by any nation for the computation of time. --
Common lunar year, the period of 12 lunar months, or 354 days. --
Common year, each year of 365 days, as distinguished from leap year. --
Embolismic year, or
Intercalary lunar year, the period of 13 lunar months, or 384 days. --
Fiscal year (Com.), the year by which accounts are reckoned, or the year between one annual time of settlement, or balancing of accounts, and another. --
Great year. See Platonic year, under Platonic. --
Gregorian year,
Julian year. See under Gregorian, and Julian. --
Leap year. See Leap year, in the Vocabulary. --
Lunar astronomical year, the period of 12 lunar synodical months, or 354 days, 8 hours, 48 minutes, 36 seconds. --
Lunisolar year. See under Lunisolar. --
Periodical year. See Anomalistic year, above. --
Platonic year,
Sabbatical year. See under Platonic, and Sabbatical. --
Sidereal year, the time in which the sun, departing from any fixed star, returns to the same. This is 365 days, 6 hours, 9 minutes, and 9.3 seconds. --
Tropical year. See under Tropical. --
Year and a day (O. Eng. Law), a time to be allowed for an act or an event, in order that an entire year might be secured beyond all question. Abbott. --
Year of grace, any year of the Christian era; Anno Domini; A. D. or a. d. [ 1913 Webster ]

a. (Computers) having dates fully and properly represented, and not susceptible to failure due to the year 2000 bug.
Syn. -- date compliant. [ PJC ]

n. (Computers) an error in the coding of certain computer programs in which the year portion of dates was represented by only two decimal digits, assuming that the first two digits are “19”. In such a program the the year 1975 is represented as “75”. This was a common practise in computer programming even into the 1990's, as many programmers failed to consider that their programs would be used after the year 1999. Thus, with such a program, a person born in 2000 would be considered as 101 years old in 2001; many different serious problems, as various as the programs, could be caused by such an error. In 1998 many programs with the year 2000 bug were still not corrected, and it is not clear how many programs will retain the bug when the year 2000 arrives. Tune in then.
Syn. -- millemium bug, Y2K bug, Y2K problem. [ PJC ]

n. (Bot.) The California poison oak (Rhus diversiloba). See under Poison, a. [ 1913 Webster ]

n. 1. A book published yearly; any annual report or summary of the statistics or facts of a year, designed to be used as a reference book; as, the Congregational Yearbook. [ 1913 Webster ]

2. (Eng. Law) A book containing annual reports of cases adjudged in the courts of England. [ 1913 Webster ]

[ 1913 Webster ]

☞ The Yearbooks are the oldest English reports extant, beginning with the reign of Edward II., and ending with the reign of Henry VIII. They were published annually, and derive their name from that fact. They consist of eleven parts, or volumes, are written in Law French, and extend over nearly two hundred years. There are, however, several hiatuses, or chasms, in the series. Kent. Bouvier. [ 1913 Webster ]

a. Containing years; having existed or continued many years; aged. [ Obs. ] B. Jonson. [ 1913 Webster ]

adj. 1. taking place at the close of a fiscal year. year-end audit [ WordNet 1.5 ]

n. 1. the end of a calendar year. he had to unload the merchandise before the year-end [ WordNet 1.5 ]

n. [ Year + -ling. ] An animal one year old, or in the second year of its age; -- applied chiefly to cattle, sheep, and horses. [ 1913 Webster ]

a. Being a year old. “A yearling bullock to thy name small smoke.” Pope. [ 1913 Webster ]