few decades; many decades; several decades
operation; functioning; running
outbreak; spring forth; generation (e.g. of power or heat); genesis; ontogeny; development of complex multicellular structures from cell(s) in a simple state
dust and soot; particulate matter
precision equipment; delicate equipment
ignition; catching fire; firing (e.g. gun); discharging
to be descended from; to be drawn from (the tradition of); to be derived from; to follow the school (tradition) of
growth period; growing season
defect; fault; flaw; deformity; deficiency; shortage
defective item; defective product; defective merchandise
normalcy; normality; normal
exploitation; bleeding dry; squeezing dry; milking (e.g. a cow's teat); extracting (a liquid) through squeezing
I've heard that ...; rumour has it that ...; it appears as if ...
creation; founding; initiating
diligent study; devoting oneself to one's studies
under the orders of; by order (command)
senility; dotage; decrepitude
surely (not); certainly (not)
accident (caused by negligence); error; blunder; fault; defect
crafty; vicious; unscrupulous; sharp
stake; post; pile; (arch.) stump
mind; disposition; nature
origin; beginning; genesis; primeval; primordial; primitive
follow-up (tracing) survey
nisei; second-generation Japanese (or Korean, etc.); the second (e.g. Edward II); son
yakuza; gangster; mobster; useless; worthless; good-for-nothing
promotion; acceleration; encouragement; facilitation; spurring on
extermination (esp. pests); expulsion; destruction
to give; to present; to offer; to do for someone's sake
protection; safeguard; shugo (Kamakura or Muromachi period military governor)
image (on a screen); picture (e.g. on a TV); video; film; reflection; image (in one's mind)
robust health; able-bodied
tipsy; pleasantly drunk; mellow; entranced; enchanted; captivated
new registration; registering for the first time
to leave behind; to misplace; to forget