/ ˈkəʊdɪd; NAmE ˈkoʊ-/ adjective
1.
[ only before noun ] a coded message or coded information is written or sent using a special system of words, letters, numbers, etc. that can only be understood by a few other people or by a computer :
a coded warning of a bomb at the airport
2.
expressed in an indirect way :
There was coded criticism of the government from some party members.