Existence (5)
'existence' is the definition.
(synonyms)
This is all the clue.
(Other definitions for being that I've seen before include "See 9" , "A living creature" , "Living thing" , "Human, perhaps" , "substance" .)
'existence' is the definition.
(being alive)
This is the entire clue.
(Other definitions for life that I've seen before include "Vitality, vigour" , "Animation" , "Maximum stretch?" , "Existence - biography" , "Actuarial estimate of our remaining years" .)
'existence' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for esse that I've seen before include "Sees (anag.)" , "Dried fruit" , "Essential nature (philosophy)" , "Fundamental nature (philosophy)" , "Reality" .)