to stifle a smile, yawn, etc.; to bite to death
science and technology; scientific technique
progress; advance; improvement; development
remarkable; striking; brilliant; splendid; spectacular; wonderful
industry; (arch.) livelihood; (arch.) occupation
development; growth; development (of a situation, story, etc.); advancement; playing around; having an active sex life
injustice; unfairness; wrongdoing; iniquity; impropriety; irregularity
not only ... but also; in addition to; consequently
convenience; user-friendliness
elevation; rise; improvement; advancement; progress
to be useful; to be helpful; to serve the purpose
square measure; size (e.g. of land); area; surface
rate; ratio; profit; assignment; 10%; unit of ten percent; match
(practical) application; putting to practical use; applied
territory; dominion; grounds (e.g. school)
quantity; amount; volume; number; amount of money
to become possible; to become able to (do)
at hand; on hand; way of moving one's arms; skill; money at hand; pocket money
transformation; variation; metamorphosis; modification; deformation; variety
easy; likely to ...; have a tendency to ...; easy to ...
approximation; having a close resemblance
quadrilateral; quadrangle; tetragon
you're welcome; don't mention it; not at all; my pleasure
I, myself; one-self; by one-self; even I; even one
calculation; reckoning; count; forecast
soft and flaky (pie, potatoes, squash, etc.); fluffy; crumbly; being pleased with oneself; beaming happily; chuckling to oneself
perplexity; difficult question; difficult problem
smoothly; easily; readily
to be solved; to be resolved; to loosen; to come untied; to be removed (of restrictions); to be lifted (e.g. a ban)
to live; to exist; to make a living; to subsist; to be in effect; to be in use
necessary; needed; essential; necessity; need; requirement
properly; accurately; exactly; neatly; tidily; orderly
to be furnished with; to be provided with; to be possessed of; to be endowed with; to be among; to be one of
to go to and from (a place); to go back and forth between; to go to (school, work, etc.); to attend; to circulate (e.g. blood, electricity); to be communicated (e.g. thought)