(in) secrecy; behind closed doors
training; education; development; cultivation
establishment; founding; incorporation (of a business)
severe; harsh; hard; cruel; rigorous
breaking through; breakthrough; surmounting (a difficulty); overcoming; exceeding; passing
personal history; background; career
until (a time); till; to (a place or person); as far as; to (an extent); up to
all; everything; entirety; absolutely (not); (not) at all; (none) whatsoever
closely-guarded secret; top secret
as (i.e. in the role of); for (i.e. from the viewpoint of); apart from ... (used to change the topic); even (e.g. "not even a single person"); thinking that ...; trying to ...
to deal with (a person); to treat; to deal with (a problem); to handle; to operate (e.g. a machine); to handle; to deal in
elite; best; pick; cream of the crop
pluralizing suffix (esp. for people and animals; formerly honorific)
mind; spirit; attitude; mentality; spirit (of a matter); essence
the body; the flesh; the outer man; one's physique
utmost limits; extremity; limit
demand; firm request; requisition; requirement; desire
training; drill; practice; discipline
easily; readily; with ease; without trouble
to climb over; to get over; to overcome (a difficulty, obstacle, etc.); to surmount; to surpass (a predecessor); to overtake
lieutenant colonel; commander (navy)
command; direction; supervision; conducting (an orchestra, choir, etc.)
below; down; bottom; beneath; underneath; just after; right after
every part of the world; all over the world; the four corners of the world
secret manoeuvres (maneuvers); operating behind the scenes
to start; to begin; to start up (a business, society, etc.); to open (e.g. a store); to start ...; to begin to ...
secret information; intelligence
organization; organisation; structure; construction; system (e.g. railroad, transport, party, etc.); tissue; texture (of a rock)
birth (of a person); nativity; creation; formation; one's first birthday
name; given name; title; fame; renown; pretext
engine; agency; organisation; system; facility
check (pattern); plaid; check; inspection; check (mark); tick; checking (something) out
that kind of; that way; that move; that trick; that game
to be; to exist; to have; to be located; to be equipped with; to happen; to come about
this; this one; this person; now; this point (in time); here; used to stress the subject of a sentence