argument; discussion; dispute; controversy
adaptation; accommodation; conformity
fork; junction; parting of the ways; turning point
madness; craziness; insanity
erasure; deletion; elimination (of variables); extinction
sphere of action; scope of activity; range of work
beneficial; profitable; useful; helpful; instructive
(an) unknown; unknown number; variable; unknown quantity; not yet known
field; sphere; realm; division; branch
fault; weakness; flaw; crux (of a matter); difficult point; point of contention
low-priced; cheap; shallow (e.g. sympathy); superficial; link back to discussion group, bulletin board, etc. posting
topic; subject; much talked about; topical; in the news
to turn away; to bear off; to veer away; to deviate (e.g. of a conversation); to digress; to go astray
molecule; numerator; element (of a group); member; particle
key; lock; key (to a problem, success, etc.); clue
companion; comrade; escort; member of a party; fellow traveller; fellow traveler
in that case; (might not be what was expected or hoped for but) if that's the case
to make a mistake (in); to commit an error; to get wrong; to mistake (one thing for another); to confuse
supposing; even if; granting that; temporarily; provisionally; for the time being
making use of; application; practical use; operation (esp. of a boat); steering
inorganic matter; inorganic substance; inorganic compound
elaborate; delicate; exquisite
reproduction; duplication; reprinting
elegance; grace; article; item; counter for items (of food, etc.); counter for dishes or courses (at a restaurant)
strength; intensity; strong (e.g. glasses); powerful (e.g. lens); intense (e.g. fear)
pair; the two; both persons; both things
combined use; using together (with); using jointly; using at the same time
subjectivity; subject (philosophical); ego; one's personal opinion; one's own idea
kilo-; 1000; kilogram; kilogramme; kilometre; kilometer
to rely on; to depend on; to count on; to turn to (for help)
measurement error; calculation error; discrepancy; deviation; difference
to be due to; to be caused by; to depend on; to turn on; to be based on; to come from
to pass by; to go past; to go to extremes; to overdo it; to go too far
before oneself; in front of one; a bit before reaching (a location); this side (of a location); one's standpoint; one's appearance; skill
carefree; comfortable; at ease; easygoing; happy-go-lucky
other side; opposite side; other party
global positioning system; GPS
destination (one is heading towards); goal
wall of rock; rock cliff; rock face
metre (unit of length); meter; meter; gauge