operation; functioning; running
to be superfluous; to be in excess; to be more than enough
energy; energy; strength; energy source; energy resource; food energy
origin; source; basis; base; cause; (raw) material; ingredient
New World (esp. the Americas, but also Australasia); new world
environment; surroundings; circumstances
adaptation; accommodation; conforming; acclimatization; acclimatisation
kind; sort; species; species
to be found; to be discovered
neutralization; neutralisation; neutralization (e.g. of a poison); counteraction
plants and animals; flora and fauna
field; plain; hidden interior part (of a structure or object); wild (of an animal or plant)
the country; countryside; rural districts; cultivated land; fields
public appeal (e.g. for contributions); public advertisement (of a post); open recruitment; public offering (of securities)
to be decided; to be settled; to be unchanging; to be the same (as always); to be a fixed rule; to be destined; to be well executed (of a manoeuvre in a sport, game, etc.)
domestic animals; livestock; cattle
breeding; propagation; reproduction; multiplication; increase
sky; the skies; high-altitude sky; upper air
to surround; to crowd around; to gather around; to encircle; to besiege
complex; complicated; intricate; mixed (feelings)
in this way; like this; this (much); so; uh; er
field; plain; prairie; tundra; moor; wilderness
contract; compact; agreement
to tie; to bind; to bear (fruit); to close (e.g. deal); to confirm; to connect (two distant places); to close tightly
these days; nowadays; now; at present; recently; lately
fall; crash (of an aircraft)
long distance; long haul; long-distance race
correspondence; communication; transmission; news; signal; telecommunications
chance; opportunity; machine; aircraft; counter for aircraft; counter for (remaining) lives
repair; mending; fixing; servicing
contacting; (making) contact; connection (with a train, bus, etc.); joining (a railway line, etc.); connection (between matters, incidents, etc.); relation
because; for; the reason why is ...
original; unique; distinctive; independent; one's own; personal
dismissal; sacking; discharge
confrontation; opposition; antagonism
coming to a head; coming to the surface; becoming an issue; breaking