| A | B | 
|---|
| abreast | side by side; up to date | 
| barrier | anything that stops progress or blocks the way | 
| breadth | the distance of something from side to side; wide range; largeness | 
| capital | wealth that can be used to produce more wealth; punishable by death | 
| ensure | to make certain | 
| external | on or related to the outside | 
| feud | a long and bitter quarrel, especially one between families; to be enemies | 
| fortress | a building with strong walls made to be defendended against attack; a fort | 
| frequent | happening often or over and over | 
| frontier | the line between 2 countries; the outer limits of knowledge | 
| peasant | a person who makes a living from working the soil, especially in poorer countries | 
| petty | of little importance; small | 
| threat | a warning that one may do harm | 
| utilize | to put to use | 
| vast | very great in area or amount |