difficult problem; challenge
molecule; numerator; element (of a group); member; particle
blade; sword; forged blade; wavy pattern on forged blades; sharpness; unhulled rice
junk; rubbish; trash; garbage; odds and ends
specialist; expert; professional; authority; pundit
original; unique (e.g. product); signature; exclusive
serving (of food); helping; chilled soba served on a dish (often on a wicker basket or in a shallow steaming basket) with dipping sauce
to deal with effectively; to handle (well); to manage; to pass around (a plate of food, etc.) after taking one's share
satisfying; pleasing; gratifying
improvement of relations; rapprochement
ugh; yuck; ick; blech; damn; crap
subject; theme; homework; assignment; problem (that needs solving); task
order (from one's superior); command; what you say; (someone's) words
second (supplementary) sound channel
to meet up (as arranged); to rendezvous; to get together; to join (of roads, rivers, etc.); to flow together
nice; likeable; desirable
to take on; to undertake; to take over; to inherit; to guarantee; to vouch for
root; origin; source; cause; basis; foundation
to one's heart's content; as much as one likes; freely; unreservedly; fully
good luck; fortune; happiness; harvest; yield
to get the short end of the stick; to get the bad end of a bargain
receiving; acceptance; reception; admission
considerably; not a little; in no small numbers
as (much) as possible; as (far) as possible
to steel oneself to; to brace oneself
not feeling like doing ...; having no mind to ...; being in no mood for ...; indifferent; half-hearted; dispirited
to show one's age (e.g. to start creaking at the joints); to wear out (e.g. machinery)
deterioration (in quality, performance, etc.); degradation; worsening; (visible) aging; becoming unattractive (due to aging)
(balance) scales; carrying pole; shoulder pole; thread take-up lever (on a sewing machine); spreader bar
to incline toward; to slant; to go down (sun, moon); to sink; to decline; to wane
announcement; presentation; demonstration; displaying; showing; introducing
handicraft; industrial art object
thorn; spine; splinter (esp. lodged in one's flesh); hard sharp item (esp. lodged in one's throat, e.g. fish bone); biting words
pad; padding; pad (of paper); gamepad
whole year; all year round; always; all the time; during an era; second-year kindergarten student
a little over; a little more than; strength; the strong; powerhouse; one of the biggest
new development; new discovery
How did you like ...?; How about ...?; What's going on?; How's it going?
sense of duty (obligation)