strange; unfamiliar; mysterious; suspicious
unprecedented; unheard-of; record-breaking
exoplanet; extrasolar planet
anthropoid ape; anthropoid; ape
nothing; nil; naught; nought
being excessively cautious; (lit.) knocking on a strong stone bridge before crossing it
handcuffs; hand shackles; restrictions; restraints
far beyond one's power; not at all equal; no match for
secret technique; secret art
flood of emotions; many thoughts
great debt of gratitude; great obligation
parent-in-law; parents-in-law
self-assessment; self-evaluation; self-rating; self-esteem
this sort of; of this kind; of the sort; such
gratitude; thanks; apology
to hear; to be told; to know; to receive (order); to undertake; to comply
to be filled with grief; to be overcome with sorrow
setting off (on a trip); departure
deeply ashamed (of oneself); overwhelmed with shame
source (e.g. of a river); headwaters; origin of something continuous (language, culture, etc.)
to boil up; to come to the boil; to arise; to break out; to get excited; to be in uproar
source (of a spring, etc.); source (of payment, energy, knowledge, etc.); origin; wellspring
the big two ...; two major ...; two main ...
not a little; not a few; considerable
hiring from another company; recruitment; quick costume change (taking off outer costume); drawing (wire, pipes, metal plate); extraction; pulling out
industrial spy; industrial espionage
to change direction (of policy, etc.); (lit.) to turn the rudder (of a ship)
mutual aid; cooperation; benefit
worthy of special mention
scholar of Western sciences (by means of the Dutch language; during the Edo period); rangaku scholar
castle (in place names); castle; fortress
fresh off the farm; inexperienced
wizard; genius; remarkable talent; exceptional ability
(phenotypic) trait; (hereditary) character; allele
(large) compilation; culmination (of hard work)