| Answer | Crossword Clue |
|---|---|
| deontology | The study of the nature of duty and obligation |
| metaphysics | the study of the principles of nature and thought |
| theologies | The study of the nature of God and religious belief |
| ideologies | The science of ideas; the study of their origin and nature |
| linguistics | the study of human speech including the units, nature, structure, and modification of language |
| philosophical | Of or relating to the study of the fundamental nature of knowledge, reality, and existence |
| philosophies | The study of the fundamental nature of knowledge, reality, and existence, esp. when considered as an academic discipline |
| philosophy | The study of the fundamental nature of knowledge, reality, and existence, esp. when considered as an academic discipline |
