| cogitation(noun, act, understanding, process, attention) |
| deliberation(noun, act, understanding, view, process) |
| reflection(noun, act, understanding, process, attention) |
| rumination(noun, act, understanding, view, process) |
| contemplation(noun, act, understanding, process, attention) |
| thought(noun, act, process, belief, attention) |
| cerebration(noun, act, understanding, view, process) |
| speculation(noun, act, understanding, view, process) |
| meditation(noun, act, understanding, process, attention) |
| excogitation(noun, act, process, belief, thought) |
| idea(noun, view, impression) |
| headwork |
| thinking(noun, understanding, belief, attention, thought) |
| application(thought, debate, discussion) |
| consideration(noun, understanding, belief, attention, thought) |
| ideation(noun, understanding, attention, hope, consideration) |
| mentation |
| ratiocination(thought, debate, discussion) |
| reasoning(noun, understanding, attention, hope, consideration) |
| review(belief, thought, opinion, consideration, conjecture) |