exchange; interchange; switching; reciprocity; barter; substitution
to leave (something) undone; to neglect (a duty, task, etc.); to break (a promise, appointment, etc.); to stand (someone) up
to become indisposed; to feel unwell; to have one's physical condition deteriorate
minute; fine; delicate; accurate; precise; elaborate
careful; thorough; meticulous; scrupulous
to drive mad; to make insane; to cause a malfunction; to put out of order; to derail (a plan, etc.)
past; after; too (much); over- (e.g. eating)
without cause; without reason
shaking; trembling; pitching; disturbance; unrest; agitation
foundation; base; basis; from the beginning; from the outset; by nature
(those) who are; (that) which is; in the capacity of
brilliant; glorious; glittering; bright; splendid (e.g. achievement, success); promising (e.g. future)
career; carrier (disease, signal, warship, etc.); carrier; telephone company; career government employee
artificial; man-made; human work; human skill; artificiality
to accomplish; to finish; to fulfill
difficulty; hardship; trouble; infeasibility; inability (to carry out)
valuable; worthwhile; worthy; worth doing
how many years; how long; what year
to understand; to comprehend; to become clear; to be known; I know!; I think so too!
achievement; attainment; accomplishment; realization
to decide (e.g. an outcome); to dictate; to determine
to hand over; to transfer; to give up (e.g. one's seat); to give way; to yield; to concede
to explain; to dispel doubts
hard struggle; strenuous effort
fragment; broken piece; chip; ounce (of truth, conscience, etc.); trace; shred
interest (in something); curiosity (about something); zest (for)
complete; whole; perfect; safe
to cross; to intersect; to associate with; to mingle with; to have a sexual relationship; to copulate
exterior; surface; outside; outward appearance; looks
to keep up (appearances); to smooth over (an error, etc.); to gloss over; to mend; to repair
exactly; precisely; just; as if; as though; quite
rolling stock; railroad cars; wheeled vehicles
sense of smell; olfaction