dangerous; unsettled; troubled; disturbed; insecure
insignificant; inconsequential; trifling; negligible; of little importance
feigned; pretending (not to know)
to pose as; to (successfully) impersonate; to pretend to be; to (completely) become; to (fully) turn into
space alien; alien; extraterrestrial being
to cling to; to hold on to; to grapple; to set about doing; to begin; to take hold of
moratorium; period of grace; extension (of time, e.g. to make payments); postponement (of social responsibility); immaturity; not having developed emotional maturity
detailed; full; minute; knowing very well; knowledgeable (about); well-acquainted (with)
basics; rudiments; elements; ABCs of ...
hot (thing); passionate (feelings, etc.); ardent; hot (e.g. temper); zealous; enthusiastic; intense
complete; whole; perfect; safe
to find fault (with); to cavil (at); to carp (about); to throw a wet blanket (on); to throw cold water (on); to jinx
trade; business; commerce; occupation; calling; profession
taking a story with a grain of salt; discounting half the story
feeling; sensation; mood; sensation of doing
reasoning; inference; deduction; mystery or detective genre
detective; investigator; sleuth; detective work; secret investigation
getting tired of; getting sick of; getting bored with; getting fed up with
restless; fidgety; in a hurry
to ask a big favour; to ask unreasonable things; to be unreasonable
to make time; to carve out some time (to do something)
elementary and middle school pupils
to be opposite; to face each other; to confront (an issue); to face
affinity; feeling of closeness (with someone); feeling of kinship
assumption; supposition; hypothesis
not non-existent; not completely lacking; there is some; certainly existent
to do in place of or on behalf of (someone)
what!; oh; what the heck; what the; damn
to wither; to wilt; to droop; to be dejected; to be disheartened; to be depressed
property; fortune; assets
foreign currency; foreign money; foreign exchange; foreign goods; imported goods
lesson; section (in an organization); division; counter for lessons and chapters (of a book)
(personal) background check
to concede one is entirely in the wrong (for the sake of argument)
leaping; activity; leapfrog (over a problem); making a leap (e.g. in logic); making great strides; making rapid progress