offensive strength; offensive power; striking power
amount of light; quantity of light
essence; true nature; substance; reality
ball; ball (pitch delivered outside the strike zone); board (cardboard, pasteboard, etc.)
thin; slender; fine; unlucky
establishment; creation; posing (a problem); options setting; preference settings; configuration
passage; path; route; one's way
penetration; permeation; transmission
organic matter; organic compound
inorganic matter; inorganic substance; inorganic compound
elasticity; resilience; flexibility; adaptability
transparency; degree of clearness
transparency; permeability
equal; equivalent; equals sign; equality sign; equals (as in "A equals B")
through (e.g. an intermediary, a medium); via; over (e.g. a network); across; by way of; by means of
solid (body); solid matter; solid-state
pressure; pressure (e.g. political); arm-twisting
vaporization; vaporisation; evaporation
gas; vapour; vapor; gaseous body
reflection; reverberation; reflex; reflexes
bending; curving; warping (of feelings, logic, etc.); distortion; refraction; inflection
isolation; cut off; blockade; quarantine; interception; deprivation
defense; defence; safeguard; protection
one direction; unidirectional; non-interactive
irradiation; radiation; beaming; exposure (to light); illumination
cover; covering; covering (a song); cover; coverage; to cover (a loss)
globular shape; spherical shape
hole; opening; pit; hollow; burrow; den; deficit
mediation; agency; carrying (germs, diseases, etc.); transmission; mediation (in Hegelianism)
spirit (e.g. human spirit); soul; spirit; ghost; ethereal being
means; way; method; measure
to be extremely difficult; to present a major challenge