romance (e.g. Arthurian romances); heroic tale; (nigh) impossible dream; adventurous spirit; (full-length) novel; romance
outward appearance; ostensible; public; official
study; research; investigation
perpetual youth and longevity; immortality
(political) power; authority; influence
to carry to extremes; to go to the end of something; to investigate thoroughly; to master
layman (esp. as opposed to a Buddhist monk); laity; local manners; modern customs; common; popular
research establishment; research institute; laboratory
development; exploitation
nature; the natural world; realm of nature
growth; development; growing up; growth (of a company, the economy, etc.)
ageing; aging; senile deterioration
very young; little; childish; immature
action of making something; -ification
around the world; throughout the world
low rank; lower position; subordinate position; lower order (e.g. byte)
living thing; organism; creature; biology
population (of animals, etc.); population size; number of individuals
mother's body (esp. when pregnant or after giving birth); parent body; parent organization; base
coming and going; keeping in touch; visiting each other; street traffic; highway
but; however; provided that
organization; organisation; structure; construction; system (e.g. railroad, transport, party, etc.); tissue; texture (of a rock)
to change places; to relieve one another; to replace someone
endocrine; incretion; internal secretion
extraction; abstraction; selection (from a group); sampling
creation; generation; formation; derivation
material; substance; matter
dissemination; scattering; sprinkling; spraying
via; through; by doing; by means of; using
usual; ordinary; normal; regular; general; common
concentration; thickness; density; cardinality
ratio; proportion; percentage
elementary particle; particle
magnetic field; ambience; atmosphere; focal point
revelation; manifestation; appearance; expression (e.g. in molecular biology; protein expression or gene expression)
implementation (e.g. of a system); materialization; materialisation; realization; realisation; actualization
frame; framework; border; box; limit; restriction; category
implication; hidden meaning; latitude; atmosphere; tone; sentiment