a long, long time ago; very long ago
infectious disease; infection
head of year; teacher in charge of all classes for a whole year
last years; closing years; last days; closing days; end; last stage
teacher; instructor; teaching staff; faculty member
exaggeration; overstatement; saying too much; misstatement; slip of the tongue; gaffe
clergyman; churchman; clergy
to fall ill; to suffer from (e.g. a disease); to have something wrong with (e.g. an inner organ); to be depressed; to feel down
to become fine (of fabric); to be checkmated; to be hard pressed; to be at a loss
hands-on learning; on-the-job training; experiential learning; learning by doing
serious disease; intractable disease; difficult-to-recover-from illness
one's life under medical treatment; (means and time spent) fighting against an illness
to be beyond one's capacities; to be beyond one's powers; to be beyond one's control; to be unmanageable
wonder; miracle; amazement; prodigy
speculation; venture; stockjobbing; gambling (on stocks)
abandonment; giving up; throwing away; disposal; dumping
illegal dumping; fly-tipping
to be careful; to pay attention; to take care
of course; certainly; naturally
feeling of tragic heroism; feeling of grim resolve; sense of determination
simmer; bubble out; flow out
to do for (someone); to take in; to deceive; to hoodwink
prenatal influence of the mother on her unborn baby; teaching one's unborn baby (e.g. by playing music, etc.)
committee; commission; board; panel; committee meeting
regarding oneself (as); fancying oneself (as); seeing oneself (as); considering oneself (to be); pretension
official; formal; formula (e.g. mathematical); official (social media) account (of a company, organization, etc.)
money-making; commercialized; commercialised
laws of nature; physical laws; physics
the sciences; STEM (science, technology, engineering and mathematics)
undiscovered; not yet found; unexplored
to keep (something) a secret; to keep hidden (forever); to continue to conceal
eradication; extermination; destruction; suppression
inspection (for compliance); investigation (tax, etc.)
banzai; hurray; something to cheer about; something worthy of celebration; giving up; throwing one's hands up
brightness; discernment; insight; eyesight; vision; nth year in the Meiji era (1868.9.8-1912.7.30)
wisdom; jnana (higher knowledge)
as you are aware; as you know
dark side (of nature, town, etc.)