upper level; upper grade; high rank; advanced level; senior level; upper class
indictment; prosecution; complaint
last stand; last bastion; last stronghold; last frontier
research team; investigative team; survey team; reconnaissance team; investigative commission; fact-finding party
while; during; performed in this condition
all you have to do is; just; that's all
conversation (just) between you and me; confidential talk
policy; course; plan (of action); magnetic needle
investigation; examination; inquiry; enquiry; survey
the most; the extreme; prime; conspicuous
barrier; obstacle; difficulty; hurdle; deadlock
pride; self-confidence; thinking highly of oneself; being proud of one's abilities or achievements
management; (executive) staff; leaders; leadership; top brass; upper echelons
on one occasion; once; at one point; at one time
starting work (on); setting to work (on); commencing (a crime); playing (a move)
reexamination; reinvestigation; resurvey
superscription (on a letter, parcel, etc.); address; overwriting (data, file, etc.)
the point just before ...; the point of (doing); the verge (of); (just before the) edge
making (a report, plan, contract, etc.); drawing up; writing out; preparing; creating (a file, website, account, etc.)
to that extent; to that degree; so much; so
text (of a law, treaty, contract, etc.); provisions
few decades; many decades; several decades
to follow (a road, path, etc.); to trace; to follow (a clue, scent, tracks, plot, etc.); to trace (a route, history, family tree, etc.); to head towards (of a situation); to go in the direction of
(in) secrecy; behind closed doors
to fall into someone's hands; to pass into another's possession
to catch the eye; to attract attention
monopoly; monopolization; exclusivity; hogging; keeping to oneself
task; (doing a) bit of work; difficult task; hard work
erasure; deletion; elimination (of variables); extinction
to be caught; to be arrested; to hold on to; to grasp; to find (e.g. proof); to get (e.g. a taxi)
corresponding to; being applicable to; being relevant to; coming under; falling under; fulfilling (requirements)
cheerful; merry; sunny; bright (sky, day, etc.); fine; clear
to give an impression; to make an impression
pushing forward (undaunted); pushing on (toward a goal); striving (for)
it serves you (him) right; it's what you (he) deserves
soon; shortly; before long; nearly; almost
regular; normal; formal; legal; established; legitimate
to maintain; to continue to have
to pass; to elapse; to pass through; to go through; to experience; to go through
inscrutable; incomprehensible
(looking) blankly; vacantly; dazedly; (staring) in puzzlement; with a look of amazement
favorite; favourite; pet (e.g. teacher's pet); bookmark (in a web browser)