steering; piloting; flying; management (of people); handling; manipulation
core system; mission-critical system
serious; important; significant; grave; weighty
celestial navigation; astronavigation; celonavigation
decision; settlement; confirmation; establishment
global positioning system; GPS
to fall; to drop; to set (of the sun or moon); to sink; to decrease (of popularity, quality, speed, sales, etc.); to fall; to be inferior (to)
to measure; to weigh; to survey; to conjecture; to infer; to surmise
remainder; remnant; the rest; what is left; balance; leftovers
complementation; supplementation; completion
to sell; to betray; to sell out (one's friend, country, etc.); to make (oneself) known; to establish (a reputation) for oneself; to pick (a fight, quarrel, etc.)
astronomical observation; shooting the sun
error; fumble that leads to failing to put out a runner
since some time ago; for some time; for quite a while
to do over again; to redo; to start over; to remake; to resume; to recommence
to be main; to be principal; to be important
field of vision; visibility; view; visual field; (one's) ken
plural; multiple; plural (number)
counting backwards; calculating backwards; inverse operation
basics; rudiments; elements; ABCs of ...
white circle; white star; victory mark; victory
light; bright; bright (colour); cheerful; bright; bright (future, prospects, etc.); rosy
to shine; to sparkle; to twinkle; to light up (with happiness, hope, etc.); to beam; to gleam
to be conspicuous; to stand out
each place; various places
detection; sense (e.g. sensor)
to vomit; to throw up; to emit; to send forth; to give (an opinion); to make (a comment)
to be broken; to break; to break (down); to stop working; to fall through (of a plan, deal, etc.); to collapse
screen (of a TV, computer, etc.); image (on a screen); picture; surface of a painting (picture, drawing, etc.)
to play (a stringed or keyboard instrument)
fault; trouble; damage (to a part of the body); injury; problem; hitch
proofreading; calibration
internal (e.g. mechanism, feature); built-in; equipped (with)
to drive mad; to make insane; to cause a malfunction; to put out of order; to derail (a plan, etc.)
to be overproduced; to be incredibly good (e.g. for a child); to go much better than expected; to be too good to be true (of a story, etc.)
statement; remark; observation; utterance; speech; proposal
to drink; to swallow; to smoke (tobacco); to swallow up; to engulf; to suppress (one's anger, bitter feelings, etc.); to keep down
notice; attention; observation
to gather; to collect; to assemble
departure; departing from ...; sent from ...; (a letter, etc.) dated ...; counter for engines (on an aircraft); counter for gunshots, bursts of gas, etc.
to be noisy; to be astir; to rustle; to murmur
dividing into four; quartering