quadrilateral; quadrangle; tetragon
to be opposite; to face each other
to fall down; to drop; to be omitted; to be missing; to decrease; to sink; to fail (e.g. exam or class)
estimate; estimation; valuation; quotation
comfort; ease; easy; simple; (economically) comfortable; raku pottery
absolutely; unconditionally; never (with neg. verb)
clarification; definition
progress; advance; improvement; development
This isn't over; I will get my revenge
check; plaid; checking; monitoring; check (banking); cheque
simplified version; abridged edition
addition; adding up; integration; estimate; quantity survey
attachment; adhesion; tenacity; fixation; obsession
set; set meal; combo-meal; hairdo
to make a mistake; to be incorrect; to be mistaken
profound; deep; deep (of a cave, etc.); innermost; interior
according to (one's) calculations; for the purpose of calculation
it is not possible (to, that); there is no such thing as
observation; survey; measurement; opinion; prediction; thinking
busyness; a lot of things to do; frequent use; heavy use (of); many uses
snare; trap (for catching wild game, etc.); trap (i.e. ruse, subterfuge, etc.)
to start; to begin; to challenge; to pick (a fight); to set (traps); to plant (explosives)
consideration; taking into account
new functionality; new feature
from right to left; in one ear and out the other; nice and quick; with speed and address; without further ado
alias; pseudonym; pen name; nom de plume; different name; other name
side effect; adverse reaction
irony; sarcasm; unexpected; different from what one expected; (only) surface; something superficial
belief; faith; conviction
trace; vestige; mark; sign; evidence
official announcement; proclamation
seeming ...; appearing ...; -ish; like a ...; typical of ...
to put a burden on; to tax (e.g. strength)
rather; better; instead; if anything
securing; obtaining; ensuring; belay; belaying