borough of Greater London, England, located on the prime meridian: formerly the site of an astronomical observatory
- A borough of Greater London in southeast England on the Thames River. It is the site of the original Royal Observatory, through which passes the Prime Meridian, or longitude 0°.x
- A town of southwest Connecticut on Long Island Sound. Settled in 1640, it is a wealthy suburb of New York City and home to many investment companies.x
From Old English Grenewic (“green harbor”).
- Greenwich is first noticed in the reign of Ethelred, when it was a station of the Danish fleet (1011-1014).
- At Greenwich an annual banquet of cabinet ministers, known as the whitebait dinner, formerly took place.
- It is decidedly less at Perpignan and Lisbon than at Potsdam, Kew and Greenwich, but nowhere is the seasonal difference more conspicuous than at Tokyo, which is south of Lisbon.
- " Winter " in-, 00 eludes October to arch at Sod, so Greenwich and Batavia; November to February at Kew ky and M Kew '110 Bureau Central; December 100, 100 November to January ' at Karasjok, and December and Janu ary at Perpignan.
- At Greenwich, Oxford and several other observatories, instead of measuring the distances of the star's image from the opposite sides of the 5 mm.