Definition of esse in US English:

esse

noun

Philosophy
  • Essential nature or essence.

    See also in esse
    • ‘As potential to, and receptive of esse, essence is thus a principle through which and in which a thing exists.’
    • ‘We see here clearly how Thomas has appropriated Plato's thought for his own ‘existential’ (in the sense of esse) purposes.’
    • ‘Essence is the intrinsic limitation of esse, the crystallization of existence, bordered by nothingness.’
    quintessence, soul, spirit, ethos, nature, life, lifeblood, core, heart, centre, crux, nub, nucleus, kernel, marrow, meat, pith, gist, substance, principle, central part, fundamental quality, basic quality, essential part, intrinsic nature, sum and substance, reality, actuality
    View synonyms

Origin

Latin, ‘to be’ (used as a noun).

Pronunciation

esse

/ˈesē/