reaction; recoil; kick; backlash
centre of gravity (center); centroid; barycenter; (one's) balance
place; situation; position; location
to think (something) is improper; to question; to have a problem with
going ahead; going first; preceding; coming before; scoring first; getting off to a lead
special characteristic; special quality; trait; idiosyncrasy; peculiarity
trial product; prototype model
drumming (noise); beating; rapidly; quickly; continuously; one after the other
remodeling; remodelling; restructuring; modding
arm; skill; efforts; ability
one revolution; one rotation
far away; distant place; long ago; far back; by far
subterranean rumbling; earth tremor
to accompany; to go hand in hand with; to be consequent upon; to be accompanied by; to bring with; to take with
(sound of an) explosion or detonation; roar (of a machine)
(many) mountains; very much (wanting to do something one cannot); greatly; so many; a lot of
noisy; boisterous; turbulent (era, etc.); troubled
processing; dealing with; treatment; disposition; disposal
to furnish; to install; to get someone's agreement; to patronize; to buy usually from the same store
to scratch; to perspire; to shovel; to paddle
path through forest; woodland path; logging road
putting into operation; invocation
long (time that has passed); old (story)
frivolous; flippant; superficial; shallow; trifling; insincere
interval; break; pause; spare moment
to flap (wings); to spread one's wings; to go out into the world
huh?; eh?; what?; oh; hey!; look!
to go past (a place or thing); to go beyond
to be amazed; to be shocked; to be astonished; to be astounded; to be disgusted; to be exasperated
to see; to witness; to observe; to catch sight of; to get a glimpse of; to encounter
to doubt; to distrust; to be suspicious of; to suspect
to come out; to fall out; to fade; to discolour; to wear a hole (e.g. clothes); to leave (e.g. a meeting); to be clear
iron (Fe); strong and hard (as iron); railway; railway enthusiast
lump; mass; group; crowd; embodiment (of an idea, quality, feeling etc.); personification
large truck; semi-trailer
several times (as large, over)
going up and down; ascent and descent; climb and descent
ladder; stairs; going to several places in succession (e.g. barhopping)