What is another word for greenwich meridian?
Pronunciation: [ɡɹˈɛnɪt͡ʃ mɛɹˈɪdi͡ən] (IPA) 
Greenwich Meridian is a line of longitude that divides the Earth into Eastern and Western Hemispheres. This line is also referred to as the Prime Meridian. But aside from those terms, there are also other synonyms used to denote this important line. Examples of these synonyms include the International Meridian, the Royal Observatory Meridian, and Zero Meridian. The term "0 degree longitude" is also used to refer to this line. Additionally, some geographers use the term "Greenwich Line" to describe this longitudinal line. Regardless of what it's called, the Greenwich Meridian is essential to navigators, cartographers, and other map-makers who use this line as a baseline for determining distances and time zones.
