Conscious (5)
'conscious' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for sentient that I've seen before include "Feeling, conscious" , "Endowed with feeling and consciousness" , "Capable of feeling things as in tenets" , "having power of perception" , "Having feelings" .)
'conscious' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for aware that I've seen before include "fly" , "Having knowledge of, informed" , "Bearing in mind" , "Knowing (of something)" , "Alert, conscious of" .)
'conscious' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for alive that I've seen before include "Alert, active" , "Go or walk briskly" , "Spirited" , "Animated, on the ball" , "Teeming (with)" .)
'conscious' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for alert that I've seen before include "Watchfully awake" , "Wide awake and watchful" , "Warning signal" , "Prompt" , "Watchful, sharp" .)
'conscious' is the definition.
(associated in meaning)
This is all the clue.
(Other definitions for awake that I've seen before include "Cease sleeping" , "Become active again" , "Completely conscious" , "Stop sleeping" , "Alive and alert" .)
(Other definitions for eco that I've seen before include "Umberto - - , novelist" , "Environmental group" , "Umberto -, Italian author (The Name of the Rose)" , "Umberto --, Italian writer" , "Concerned with the environment" .)