dental brushing; brushing one's teeth; dentifrice; toothpaste; tooth powder
pretty; lovely; clean; clear; completely; entirely
special; particular; peculiar; unique
cash; ready money; money on hand; mercenary; self-interested; calculating
loss of strength; exhaustion; weakness
counter for choices, options, etc.
whole life; a lifetime; all through life; (the only, the greatest, etc.) of one's life
periodontal disease; gum disease
to lose a tooth; to lose one's teeth
grandfather; male senior-citizen
grandmother; old woman; female senior citizen
to become rusted together; to become rusted shut; to rust; to become (completely) rusty; to become rusty (of a skill or ability); to become less effective
desk pad; sheet of plastic (or cardboard, felt, etc.) placed under writing paper; being pinned under; being caught under; model; pattern
too much; excessively; too
infancy; childish; infantile; immature
formula; equation; method of calculation; calculus
to spell; to write; to compose; to bind (e.g. documents); to patch
to start a journey; to embark on a trip; to set forth; to hit the trail
to polish; to shine; to brush (e.g. teeth); to refine (e.g. a skill); to improve; to cultivate
to collapse; to crumble; to get out of shape; to lose one's shape; to break down; to be thrown into disarray; to crash (stock market)
halving; dividing (into two parts); bisection; the two equinoxes (vernal and autumnal)
supposing; even if; granting that; temporarily; provisionally; for the time being
(period of) a year; during an era
to continue to do; to persist in doing
to die; to pass away; to lose spirit; to lose vigor; to cease; to stop
to spend; to expend; to waste; to squander; to devote
precondition; prerequisite
prevention; precaution; protection against
to divide; to cut; to halve; to break; to crack; to dilute; to fall below
conversion (e.g. yen to dollars); change; exchange; translation (numerical)
to replace; to move; to change the position of
selection; choice; option
to each his own; people differ; different people (have different likes)