n.
Pronunciation: du ̇ - ' ä-p ə -l ē also dyu ̇ -
Function: noun
Inflected Form: plural -lies
Etymology: duo- + -poly (as in monopoly )
Date: 1920
1 : an oligopoly limited to two sellers
2 : preponderant influence or control by two political powers
– du · op · o · lis · tic \ - ˌ ä-p ə - ' lis-tik \ adjective