Definition of "cordon"

(archaic) A ribbon normally worn diagonally across the chest as a decoration or insignia of rank etc.

A line of people or things placed around an area to enclose or protect it.  examples

(cricket) The arc of fielders on the off side, behind the batsman - the slips and gully.  examples

(botany) A woody plant, such as a fruit tree, pruned and trained to grow as a single stem on a support.  examples

Only used in cordon off  examples