subtle; delicate; difficult; complex; doubtful; questionable
measurement error; calculation error
repeatedly; over and over again; several layers deep; layer upon layer; row upon row
gap; lag; difference; discrepancy; shear (e.g. shear stress)
conversion (e.g. yen to dollars); change; exchange; translation (numerical)
recognition; awareness; perception; understanding; knowledge; cognition
spirit; mind; nature; disposition; motivation; intention
criticism; blame; censure; attack; reproach
which (of three or more); well; now; c'mon
to choose at one's own discretion; to choose when to do something; to estimate (the time for something)
to be in time (for); to serve (suit, meet) the purpose; to be good enough; to be enough
to calm down; to compose oneself; to calm down; to settle down; to settle down (in a location, job, etc.); to settle in; to be settled
if you are so inclined; if it suits you; if you like
one day; all day (long); throughout the day; first day of the month
eager; earnest; strenuous; fervent; assiduous; with utmost effort
corner; edge; (street) corner; turning; rough edges (of one's character, words, etc.); abrasiveness
to bend; to curve; to turn; to be awry; to be askew
guidance; leadership; leading the way
side street (often parallel to a main street); back street; alley; alleyway
rush; rush hour; rush print (in films, anime, etc.); lighter aboard ship; LASH
immediately; at once; soon; before long; easily; readily
an extra effort; going the extra mile; one final push
alley; alleyway; teahouse garden; path through a gate (or through a garden, etc.)
several people; a few people
the opposite direction; the other way
drumming (noise); beating; rapidly; quickly; continuously; one after the other
passerby; pedestrian; foot passenger
gender; distinction of sex; sex
scattered; disperse; loose; disconnected; in pieces; in drops
point in common; common feature
bizarre; strange; eccentric; odd; queer
vigilance; caution; alertness; precaution; being on guard
to whisper; to murmur; to rumor; to rumour
another time; again; over again; formally; especially; intentionally