pipe; tube; gun barrel; gun; cannon; well lining
raising and lowering; fluctuation (of prices, interest rates, etc.); praising and belittling; setting out (meals, etc.) and clearing away; ebb and flow (of the tide); rising and falling (pitch, tone, etc.); modulation
eccentricity; eccentric behaviour
in an instant; in a flash; in the blink of an eye; in no time at all; just like that
to master (a skill); proprietor; manager; leader; chief; master (of arts, science, etc.); master (recording)
to lend; to loan; to rent out; to hire out; to hand (over); to give
to gather; to collect; to assemble
to become known; to come to light; to be known; to be understood; to clearly not amount to much; to be insignificant
to lend; to loan; to let out on hire
to receive; to get; to eat; to drink; to be crowned with; to wear (on one's head)
thickness; profundity; depth; thickness; strong and tight group or wall of stones
glittering; sparkling; glistening; twinkling
to shine; to sparkle; to twinkle; to light up (with happiness, hope, etc.); to beam; to gleam
as one wishes; as one wants; to one's satisfaction
sense; sensation; feeling; intuition
year; age; years; past one's prime; old age
to distance oneself (from); to keep (something or someone) at a distance; to maintain a distance (from)
because of; on account of; about; on; per; for every
to come together; to merge; to fit; to match; to be profitable; to be equitable
one by one; one after another; successively
to be weary; to be worn out; to be fed up (with); to be sick of; to be dejected; to be dispirited
this and that; various things
solitude; loneliness; isolation
recreation; diversion; relaxation
laboratory; seminar room; professor's office
very interesting; of absorbing interest; having a keen interest (in); being immensely curious (about)
for two people's eyes to meet; catching someone's eye; making eye contact; meeting a person's gaze
awkward; uncomfortable; embarrassing
to approach; to draw near; to get close; to get acquainted with; to get closer to; to get to know
to weigh on one's mind; to bother one; to be interested (in); to be curious (about); to feel like (doing); to feel inclined to
assistant; helper; assistant (to a professor); research assistant
to be saved; to be rescued; to escape harm; to be spared damage; to be helped; to be saved trouble
to be needed; to be necessary; to be required; to be wanted; to need; to want
to line up; to stand in a line; to rival; to match; to equal
to be fascinated (by); to be captivated by; to be enchanted by; to gaze admiringly at; to watch in fascination
company secret; industrial secret; trade secret
to anyone; to everyone; by anyone; by everyone; in everyone; in anyone
secret; secrecy; mystery; secret (e.g. to success); esoteric teachings
throwing in; inserting; investment; commitment (of funds, personnel, etc.); launching (a product into the market); introduction
German chamomile (Matricaria recutita); German camomile
charge; custody; safekeeping; deposit; storage
ventilation; communication (within an organisation); openness