That which is detected by the five senses; not necessarily understood (imagine looking through fog, trying to understand if you see a small dog or a cat); also that which is detected within consciousness as a thought, intuition, deduction, etc.
Vision (ability)
Conscious understanding of something.
The organisation, identification and interpretation of sensory information.
Acuity
The result or product of being tactless.
The state or quality of being tactless.