have to (verb); must (verb); is indispensable; absolutely necessary
as if (something untrue were actually true); like hell (e.g. "like hell I will")
structure; construction; makeup; framework; organization; pattern
unintelligible language; incoherent language; talking nonsense; "all Greek to me"; double Dutch; (something) incomprehensible
numerator; molecule; member; element
racketeer; thug; rogue; bully; fixer
year; age; years; past one's prime; old age
unreliable; undependable; helpless; forlorn; worried; uneasy
field; sphere; realm; division; branch
to hide; to keep to oneself
to give up (something as hopeless); to throw in the towel
reckless remark; rash remark; thoughtless words; falsehood
knowing; (an) acquaintance
well-informed person; walking dictionary; extensive knowledge
expert; learned person; doctor; PhD; instructor at the imperial court (ritsuryo period); pitch and length marks (to accompany a Buddhist liturgical chant, etc.)
boy; son; child; mere boy; stripling; greenhorn
to throw out one's chest; to be puffed up with pride
to go down in history; to be recorded in the history books
poor piece of work; rubbish; trash
materials; data; document
influence; power; might; strength; potency; force
halving; dividing (into two parts); bisection; the two equinoxes (vernal and autumnal)
throwing in; inserting; investment; commitment (of funds, personnel, etc.); launching (a product into the market); introduction
so to speak; so to call it; as it were
ancestor; forefather; foremother
leadership; initiative; spearhead
person in charge; senior staff; manager; chief; head
secret; private; surreptitious
to advance; to move forward; to carry forward (plans, work, etc.); to proceed with; to raise; to elevate
discovery (of a plot, misdeed, etc.); detection; exposure; disclosure
portrait photo; mug shot; face shot; photograph of a person's face
to be placed on; to be set on; to be piled on; to appear (in print); to be mentioned; to be recorded
to start work (on); to undertake; to start committing a crime; embarkation; launch