at once; immediately; without delay; promptly
sharp sighted; easily awakened
watching a (sports) game; spectating; observing (military operations)
oh!; good heavens!; ugh!; oh no!; ah!; the penny drops!
as usual; as always; as before; as ever; still
uncomfortable feeling; feeling out of place; sense of discomfort; malaise; physical unease
thought; consideration; thinking
because ...; for ...; the reason being ...; as for ...; when it comes to ...; regarding ...
fashion; way; school (of thought); class; rank; current (electrical, water, etc.)
Chinese "star" constellation (one of the 28 mansions); Singapore
representative; representation; delegation; switchboard number; main number
fixed; settled; constant; definite; uniform; regularized
artificial intelligence; AI
general term; generic name
extent; degree; limit; bounds; (span of) time; (a) distance; the state of
atrocious; fiendish; brutal; villainous
to be able (to); to be possible (to)
mostly; nearly; practically; well-nigh; almost invariably; all but
preeminence; excellence; superiority; transcendence
user; consumer; master (e.g. of swordsmanship); prodigal; spendthrift
to make war (on); to wage war (against); to compete (against); to struggle (against adversities, etc.); to fight
errand; mission; messenger; bearer; familiar spirit; use
and the like; such as; or something; something like; I hear that ...; people say that...
unusual; rare; new; novel; fine (e.g. gift)
to hear; to listen (e.g. to music); to ask; to enquire; to hear about; to hear of; to follow (advice, order, etc.)
steady; sound; solid; reliable; trustworthy
collecting; accumulating; collection (of art, stamps, insects, etc.); garbage collection; waste collection
(approximate) time; around; suitable time (or condition); time of year; season
exceedingly; extremely; decisively
one's own convenience; one's way; surroundings; environment; convenience; ease of use; financial circumstances
emergency; extraordinary; unusual
difficult; hard; impossible; unfeasible; fussy; particular; gloomy
grasp; catch; understanding
expectation; anticipation; purpose; intention; others' opinions of one; speculation
avenue; street; coming and going; street traffic; flow (of water, air, etc.); transmission (of sound); reach (e.g. of voice)
to move; to shift; to inspire; to rouse; to change; to alter; to operate
corresponding to (in meaning, function, etc.); being equivalent to; appropriate; suitable; to be proportionate to; to be in keeping with
proficiency; mastery; becoming proficient (in)
necessary; needed; essential; necessity; need; requirement