| premeditation(noun, account, debate, reflection, deliberation) |
| probation(noun, study, examination, exploration, disquisition) |
| probe(noun, study, examination, exploration, disquisition) |
| probing(noun, study, examination, exploration, disquisition) |
| psyche(noun, spirit, life, soul) |
| query(noun, study, examination, exploration, disquisition) |
| quest(noun, study, examination, exploration, disquisition) |
| question(noun, study, examination, exploration, disquisition) |
| questionary(noun, study, examination, exploration, disquisition) |
| questionnaire(noun, study, examination, exploration, disquisition) |
| quintessence(noun, spirit, life, soul, psyche) |
| quiz(noun, study, examination, exploration, disquisition) |
| reason(noun, mind, head, brain, thinker) |
| reflection(noun, account, debate, deliberation, advisement) |
| rehearing(noun, study, examination, exploration, disquisition) |
| reinvestigation(noun, study, examination, exploration, disquisition) |
| research(noun, study, examination, exploration, disquisition) |
| rumination(noun, account, debate, reflection, deliberation) |
| sagacity(noun, mind, head, brain, thinker) |
| sapience(noun, mind, head, brain, thinker) |