1) Awareness 2) Capacity for feeling 3) Consciousness 1) Sensitivity 2) Sentiency 
Sentience is the ability to feel, perceive, or to experience subjectivity. Eighteenth-century philosophers used the concept to distinguish the ability to think (reason) from the ability to feel (sentience). In modern Western philosophy, sentience is the ability to experience sensations (known in philosophy of mind as `qualia`). In Eastern philos.....
• (n.) Alt. of Sentiency
[n] - the readiness to perceive sensations
sentience 1. The ability of the nervous system to receive stimuli. 2. The simplest form of cognition, in which there is bare sensing without associated meanings. 3. A capacity for feeling; consciousness.
sentiency noun the faculty through which the external world is apprehended; `in the dark he had to depend on touch and on his senses of smell and hearing` noun the readiness to perceive sensations; elementary or undifferentiated consciousness; `gave sentience to slugs and newts`- Richard Eberhart
(Lat. sentiens, from sentire, to feel) Consciousness at a rudimentary sensory level. -- L.W.