use; utilization; utilisation; application
study; research; investigation
seeming ...; appearing ...; -ish; like a ...; typical of ...
birth; creation; formation
relation; relationship; participation; involvement; influence; effect
good; fine; excellent; favorable; favourable; satisfactory
to keep; to preserve; to hold; to last; to endure; to keep well (food)
always; all the time; never; usual; regular
busy; occupied; hectic; restless; hurried; fidgety
various; all sorts of; variety of; (arch.) various colors (colours)
one (esp. of two); the other; on the one hand; on the other hand; whereas; although
loose; slack; gentle (slope, curve); slow (speed); lenient; liberal
to continue; to last; to continue (without a break); to be unbroken; to occur again and again; to lead to; to connect to
to end; to come to an end; to close; to finish
red; crimson; Red; communist; (arch.) beautiful
to change color (esp. leaves, fruit, flowers) (colour); to turn crimson (e.g. leaves in autumn); to begin to redden; to ripen; to grow ripe
there is no need to ...; never happens; there is never a time when
to be able (in a position) to do; to be up to the task; to be ready; to be completed; to be made; to be built; to be good at
satisfaction; contentment; sufficient; satisfactory; satisfying (an equation)
to digest; to break down; to break to pieces; to be able to use; to be good at; to finish; to complete
summer vacation; summer holiday
that being the case; because of ...; the reason is ...; given that ...
to hide; to be hidden; to conceal oneself; to disappear
(following a verb) to be sure to; to do (something) so that ...; to make sure to; to try to
in the morning; during the morning
police officer; policeman; policewoman
to receive; to get; to catch (e.g. a ball); to be struck by (wind, waves, sunlight, etc.); to sustain (damage); to incur (a loss); to undergo (e.g. surgery)
(for something) to have occurred; to have done (something); (for something) to happen on occasion
as one would expect; naturally; indeed; still; all the same; after all
crisis; critical situation; emergency; pinch
to feel; to sense; to experience
somehow; for some reason; without knowing why
to be taught; to learn; to take lessons in
flowers budding; blooming; flowering; showing results; becoming popular; blooming
high; tall; expensive; high-priced; high (level); above average (in degree, quality, etc.)
holding (a conference, exhibition, etc.); opening; hosting (e.g. the Olympics)
to be mixed; to be blended with; to be combined; to associate with; to mingle with; to interest
to collect; to assemble; to gather
stone; jewel; precious stone; flint (in a lighter); stone (in go); stone (in the bladder, kidney etc.); calculus
easy; likely to ...; have a tendency to ...; easy to ...
society; the world; the times