hierarchical relationship; superior-subordinate relationship; senior-junior relationship
official certification; official approval; certification examination; licensing examination; hypothesis testing
to search about for; to hunt around for; to look high and low for; to look everywhere for
to cherish; to treasure; to prize; to take good care of; to look after
to crow at the break of dawn (of a rooster, etc.); to mark the dawn; to proclaim the dawn
school; school building; schoolhouse
seven colours (of the rainbow); prismatic colors; blend of seven spices (cayenne, sesame, Japanese pepper, citrus peel, etc.)
deep inside; innermost place
resonance; sympathetic vibration
the four classical chemical elements (fire, earth, air and water)
in turns; in series; in order; by rotation
small; fine; detailed; stingy
out-of-place; inappropriate; sticking out like a sore thumb; produced at an unorthodox location
to become keen on; to get passionate about
self-centeredness; self-centredness; selfishness; egotism; egoism
sales message; sales copy
having a place to oneself (e.g. restaurant, movie theater); having the run of a place
visit to the United Kingdom
physical condition; state of health; shape
absolutely (ought to); by all means; all; entirely
speaker; lecturer; lecturer (at a university or college); instructor; part-time teacher; tutor (at a cram school)
killing; destruction of life; cruel; heartless; callous
assortment; product lineup
level of happiness; degree of happiness
rising rapidly (e.g. prices, popularity); soaring; skyrocketing; going through the roof
(school) subject; curriculum; course; item; heading; entry
science (natural sciences and related fields, incl. mathematics, engineering, medicine, etc.); faculties of science, engineering, medicine, etc. (at a university); science (as a school subject)
posterity; future generations
diffusion; spread; popularization; promulgation; familiarization
to endeavor (to do); to endeavour; to try hard; to work hard; to strive; to make an effort
day after tomorrow; wrong (e.g. direction)
combination; union; bond; join (in relational algebra)
command of English; proficiency in English; knowledge of English
everyday conversation; day-to-day conversation
inscription; epitaph; (manufacturer's) engraved signature; motto; maxim
to be outdone (by); to be in inferior (to); to compare unfavorably (with); to be behind
corner; nook; shade; shadow; dark circles (under the eyes); dark rings; bend (in a road, river, etc.)
to lead a life; to live a life