solution; solution strategy
existence or nonexistence; presence or absence; consent or refusal; yes or no
way of using (something); way to use; how to use; way of handling (employees, subordinates, etc.); way of treating; treatment
replenishment; supplementation; supplement; replacement; refilling
thin (air); weak (liquid); dilute; lacking (enthusiasm, consideration, substance, etc.); insubstantial; deficient
crystal; crystallization; crystallisation; fruits (of labor, union, etc.)
what is called; what you call; what they call; so-called
change; conversion; transformation; transformation
near; neighbourhood; nearly (e.g. "it took nearly one year"); close to; shortly; soon
spreading; disseminating; scattering; diffusion (of light, gas)
general; popular; common; typical
optimization; optimisation
way; style; ceremony; rite; wedding (ceremony); equation
energy; energy; strength; energy source; energy resource; food energy
highly priced; expensive; valuable; costly
recklessly; thoughtlessly; pamperingly; indulgently; shoo!; heave-ho; hallo
to think up; to think out; to knit (a pattern into a sweater, etc.); to start knitting
very; very much; greatly; considerably; highly; exceedingly
utmost limits; extremity; limit
in proportion to; just as much as
to leak out; to escape; to find expression; to give vent; to leak out; to be divulged
if only (you) have; as long as (you) have; whenever (you) have
perpetual motion machine; perpetual motion engine; perpetuum mobile
making use of; application; practical use; operation (esp. of a boat); steering
to dilute; to water down; to thin; to soften (e.g. a statement, impression, etc.); to weaken (e.g. an effect); to tone down
to be lost (e.g. luggage); to be missing; to be used up; to be run out; to disappear (e.g. pain); to be lost (e.g. a dream, confidence)
special; particular; peculiar; unique
zero; 0; nought; nothing; zilch
invention; intelligent; clever; smart
special characteristic; special quality; trait; idiosyncrasy; peculiarity
match (contest); matching (with); going well (with)
absolutely essential; indispensable; vital; critical
extraction; abstraction; selection (from a group); sampling
aim; goal; prospect; outlook
equipment; facilities; installation; accommodations; conveniences; arrangements
cheerful; merry; sunny; bright (sky, day, etc.); fine; clear