to hear; to listen (e.g. to music); to ask; to enquire; to hear about; to hear of; to follow (advice, order, etc.)
than; from; out of; except; but; more
the future (usually distant); future tense; the world to come
research establishment; research institute; laboratory
tactics; strategy; military operation; naval operation
putting into operation; invocation
sudden; abrupt; urgent; pressing; steep; sharp; rapid
what's the matter?; what's wrong?; what happened (to) ...?; what have you done (with) ...?; where is ...?
to get up; to rise; to wake up; to be awake; to occur (usu. of unfavourable incidents); to happen
from now on; after this; in the future; from here; from this point
the world; society; sphere; circle; world-renowned; world-famous
to operate (e.g. a machine); to handle; to have a good command of (a language); to play proficiently (of a musical instrument); to work (a puppet); to pull the strings of a puppet
darkness; the dark; bewilderment; despair; hidden place; secrecy
battle; fight; war; struggle; conflict
to begin; to start; to happen (again); to begin (anew); to date (from); to originate (in)
voice; singing (of a bird); chirping (of an insect); voice; opinion (as expressed in words); sound; sense (of something's arrival)
worldwide; global; international; world-famous; world-class
while; during; while; although; all; both
study; research; investigation
to gaze at; to fix one's eyes upon
two persons; two people; pair; couple
to be needed; to be wanted
to precede; to forestall; to anticipate
to outwit; to outmanoeuvre; to steal a march on; to get the jump on; to anticipate; to forestall
anyhow; at any rate; anyway; somehow or other; generally speaking; in any case
first of all; to begin with; probably; most likely; more or less (satisfactory); on the whole
and; and then; thus; and now; and finally
riddle; puzzle; enigma; enigmatic; mysterious
to go out (e.g. on an excursion or outing); to leave; to depart; to be about to leave; to be just going out
preparation; arrangements; getting ready; provision; setup; reserving
just (e.g. "just wait here"); come now; tolerably; passably; well...; I think...
today; this day; these days; recently; nowadays
after all; in the end; conclusion; end; end of a game of go, shogi, etc.
one person; being alone; being by oneself; being single; being unmarried; by oneself