| No | Word | Definition |
| 1 | Framework | Something that we can build upon, such as code. |
| 2 | Knowledgebase | A software component that represents a collection of information that is ontologically described, processed, and accessed in a Semantic Web application. |
| 3 | Conjunctive queries | In database theory, it is a restricted form of first-order queries. |
| 4 | Taxonomy | The practice and science of classification. |