fluent (in a language); flowing
life; life force; lifetime; lifespan; most important thing; foundation
hurriedly; in a hurry; hastily; sudden; abrupt
appeal; call for something; request; axiom
exceptional; unusual; extraordinary; unprecedented; singular
organization; organisation; structure; construction; system (e.g. railroad, transport, party, etc.); tissue; texture (of a rock)
medical treatment; medical care
division (of a larger group); branch; field; class (subclass); group; category
secrecy; highly classified information
retention; maintenance; preservation
main purpose; chief aim; focus; main point; gist; essence
self-absorbed; self-contained
relatives; one's family; friends; members of the same organization; followers; henchmen
to be in time (for); to serve (suit, meet) the purpose; to be good enough; to be enough
technical; specialist; professional; exclusive
naturally; not surprisingly; it should be appreciated that; understandably; as a matter of course; as is obvious
under (guidance, supervision, rules, the law, etc.); under (a flag, the sun, etc.); beneath; with (e.g. one blow); on (the promise, condition, assumption, etc. that ...); (someone's) side
to be honest; to be frank; honestly; if you want to know the truth
truth; reality; truly; really; absolute truth
thought; consideration; thinking
system; organization; organisation; architecture
agreement; concurrence; conformance; compliance
simple; plain; uncomplicated; straightforward; simple-minded; naive
to be open (to traffic); to lead (to); to flow (of a liquid, current, etc.); to pass (through); to be conveyed (of an intention, meaning, etc.); to be understood (by); to be well versed (in)
to go against; to oppose; to disobey; to defy
under (influence, control, conditions, etc. of); during (war, occupation, etc.)
laboratory; seminar room; professor's office
poor (living); barely continuing; just scraping along; very narrow
student (esp. a university student)
conscription; (military) draft; (compulsory) enlistment
postponement; deferment; hesitation; delaying; suspended sentence
without a moment's delay; leaving everything else unattended to
steam locomotive; steam train; (long-distance) train; non-electric train; diesel train
to head out (for); to head (to); to go (to); to leave (for)
coworker; co-worker; colleague; associate
to cross (legs or arms); to link (arms); to put together; to construct; to braid; to plait; to grapple
medicine; the healing art; healing; doctor