| A | B |
|---|
| uniform | conforming to one principle, standard, or rule |
| unity | the state or quality of being one |
| unique | being the only one of its kind |
| unite | to bring together so as to form a whole |
| unify | to make into or become a unit |
| union | the act of uniting or the state of being united; an alliance or confederation of people, parties, or political entities |
| duet | a musical composition for two voices or two instruments |
| duplicity | a deliberate deceptiveness in behavior or speech |
| duplicitous | givem to or marked by deliberate deceptiveness in behavior and speech |
| duplex | twofold, double, having two apartments |
| trio | A musical composition for 3 voices or instruments |
| trident | a long 3-pronged fork or weapon, especially used for fishing |
| triad | a group of three or a chord of 3 tones |
| quart | 1/4 of a gallon |
| quadrant | 1/4 of a given plane (square, circle, etc) |
| quartet | a composition for 4 voices or instruments |
| quintuplet | one of five offspring born in a single birth |
| sextet | A composition for six voices or instruments |
| octagon | a polygon with eight sides and eight angles |
| octopus | mollusk with 8 tentacles |
| decima; | a linear array of digits that represent a real nuber, every decimal place indicating a multiple of the a negative power of 10 |
| decimate | to destroy or kill a large part of a group, to inflict great destruction,to kill every 10th member of a group, |
| decagon | a polygon with 10 angles and 10 sides |
| century | a period of 100 years |
| millennium | a span of 1000 years |
| primeval | belonging to the first or earliest of ages; original or ancient |
| trinity | a group consisting of three closely related members |
| trefoil | a three-leafed symbol |
| quinate | the facade of a building with five pillars |
| duarchy | a government run by two consuls |
| quadruped | an animal that walks on four feet |
