| Term | Definition |
| Neolithic | From the time period in history marked by development of agriculture and polished stone tools. |
| surplus | An amount or quantity in excess of what is needed. |
| Settle | To stay and live in one place to establish residence. |
| Domesticate | To train to be of use to human beings: To tame. |
| Cultivate | Grow or tend plants of crops. |
| Agriculture | Farming: Cultivating the soil producing useful crops and raising livestock. |
| Irrigation | Supplying water to dry land using canals pipes or streams for the purpose of growing crops or pasturing lands. |
| specialize | To focus on a special task or job of field of study. |
| Chronological | Arranged in order of time of occurences. |