cordon /ˈkɔː(ɹ)dən/noun 4verb 1forms 3phrases 1 noun4 •A line of people or things placed around an area to enclose or protect it. •A woody plant, such as a fruit tree, pruned and trained to grow as a single stem on a support. •The arc of fielders on the off side, behind the batsman: the slips and gully. •A ribbon normally worn diagonally across the chest as a decoration or insignia of rank etc. verb1 •Synonym of cordon off.Strong detachments of infantry instead of gendarmes cordoned the streets leading to the Lycée. — 1899 formscordoned · cordoning · cordons Phrases with cordon cordon offTo protect from intrusion by enclosing in a rope or other barrier.