monad (n.)
- ace
- air
- atom
- being
- body
- component
- constituent
- creature
- critter
- earth
- electron
- element
- entelechy
- entity
- fire
- hyle
- hypostasis
- individual
- ion
- life
- material
- materiality
- matter
- meson
- molecule
- nature
- object
- one
- organism
- person
- persona
- personality
- plenum
- proton
- quark
- something
- soul
- stuff
- substance
- substratum
- thing
- unit
- water