monos <G.

one

monologue

a long speech made by one performer OR by one person in a group

monarch

n. 1. a person who rules a kingdom or empire;

        a king or a queen, emperor or empress

n. 2. a large black and orange American

        butterfly

monogram

 n. A design composed of letters,  

    usually the first letter of a name

monopoly

 n. 1. Exclusive control of the trade in some item or

         service.

 n. 2. Sole ownership or control of anything.

monolith

n. 1. A large block of stone.

n. 2. A large organization that acts as a single

        unit.

unus <L.

one

unanimous

adj. 1. Being in complete agreement.

unilateral

adj. 1. One-sided; done by or affecting one 

           person , group, or country, etc. and not

           another.

duo <L.

duplex <L.

Two

duplex

 n. 1. A dwelling with two living units.

duplicate

v. 1. To make an identical copy or double of

        something; to repeat

Bi<L.

two

bilateral

adj. 1. Having two sides.

adj. 2. Made between two persons or groups.

bipartisan

adj. 1. involving two political parties

bisect

v. 1. To divide into two equal parts.