| Term | Definition |
| query | to ask about; to question as doubtful |
| quest | a search to find something; a mission |
| quiz | an informal test or examination |
| quizzical | questioning; puzzled; surprised; perplexed |
| question | to ask; to interrogate |
| questionnaire | a survey or feedback form |
| request | to ask or demand in a formal manner |
| require | to impose an obligation upon; to demand |
| requisite | necessary; vital; obligatory |
| requisition | an authoritative or formal demand |
| requirement | an obligation; a demand; a necessity |
| inquire | to ask; to question |
| inquest | a formal investigation; a legal examination |
| inquiry | the act of seeking information by questioning |
| inquisition | an official investigation, often religious or political |
| inquisitive | curious; asking lots of questions |
| conquer | to overcome; to defeat; to take control of |
| conquest | a defeat; a victory |
| exquisite | of rare beauty or charm; extraordinary |
| prerequisite | a requirement beforehand; a must; a precondition |