green line

noun (sometimes initial capital letters)

(in Lebanon) a demarcation line that divides predominantly Christian East Beirut and predominantly Moslem West Beirut.
any similar demarcation line between two hostile communities, as between Greek and Turkish Cypriots in Nicosia.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for green line

Contemporary Examples of green line

Now they can make a choice to buy from within the green-line.
Stick a Label On It, Israel
Hannah Weisfeld
October 16, 2012

Historical Examples of green line

Beside that, he wouldn't axcept any accommodashuns short of a green-line sleeper.
The Bad Boy At Home
Walter T. Gray

British Dictionary definitions for green line

green line

noun

(sometimes capitals) a line of demarcation between two hostile communities

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012