first; foremost; most important; best; greatest; above all
to draw an arc (e.g. with a compass); to describe an arc (e.g. through the air)
complex; complicated; intricate; mixed (feelings)
crossing; intersection; (genetic) crossing over
line; stripe; line (e.g. telephone line); wire; ray (e.g. X-ray); beam; line (e.g. of a railroad)
standing facing each other (e.g. mountains, buildings); standing opposite each other; confrontation; squaring off against (adversaries, armies, forces); standing off against
symbol; code; sign; notation
large crowd; large herd; large flock; large school; large shoal; swarm
joint ownership; co-ownership; sharing (e.g. a viewpoint); sharing (files, devices on a network, posts on social media, etc.)
to stay on; to remain; to hold out; to stop (doing); to give up
sentence; composition; text; the literary arts (as opposed to the military arts); academia; statement
solution (of an equation, inequality, etc.); root (e.g. of a polynomial); solution (to a given problem); answer; explanation; interpretation
to bend oneself forward (esp. in curiosity or excitement); to hang out (e.g. over a balcony)
to scribble (write quickly); to dash off
book; booklet; story book; pamphlet; notebook
component; factor; item (e.g. in list); element (e.g. in array); member (e.g. data structure)
head; brains; intellect; understanding
site (usu. website); sight; payable on sight
looking up (e.g. a word in a dictionary); retrieval (e.g. data); searching for; referring to
amount of sugar; sugar content
arguments for and against; pros and cons; mixed reception; mixed reviews
(turned out) all right in the end
labyrinth; maze; mystery; dungeon
half-crying; being on the verge of crying
formidable enemy; strong enemy; tough enemy
(powers of) concentration; ability to concentrate
maintenance; preservation; improvement
one by one; one after another; successively
passage (of time); elapsing; progress; development; transit
noise (usu. unpleasant); interference (e.g. radio); static; gossip; irresponsible criticism
real feeling; actual feeling; to actually feel; to have a real feeling (that ...); to experience personally
notebook; copy-book; note; noting down; (musical) note; laptop (computer)