key; lock; key (to a problem); clue
walking; pace; step; course (of history, one's life, etc.); history; pitch (of a screw, etc.)
passage; pathway; roadway; avenue; aisle
here and there; in places
to stick into and move around; to dig around in; to pick (i.e. one's teeth)
car; automobile; vehicle; wheel
wound; injury; chip; crack; flaw; defect
poor-quality; low-quality; shoddy; low-grade
mischief; prank; pastime; hobby; playing with (a lighter, etc.); fooling around with
regret; repentance; remorse
going along with something; following the crowd; treating something in an equal or egalitarian manner
very much; very many; more and more
bumping of heads; running into; coming across; encountering
to be found; to be discovered
corridor; hallway; passageway
narrow; confined; small; limited; narrow-minded; confining
to let something (or somebody) go past; to do too much
to push into; to cram into; to stuff into; to break in; to burgle; to burglarize
child's mind; childlike innocence; naivete
to slip into; to crawl into (under); to conceal oneself (under); to sneak into; to infiltrate
tough; hard; determined; strong-minded; strong (e.g. sunlight, alcohol); severe
low (rank, degree, value, content, quality, etc.); low (position); close to the ground; short (height); deep (voice); in a low key
obedient; gentle; meek; submissive; docile
(social) class; rank; grade
sharing; division; draw; tie
pecking order; hierarchical relationship; vertical relationship; hyponymy
armed forces; military; troops
scale; scope; plan; structure
expedition; (military) campaign; tour (by a sports team, performer, etc.); visit
belonging; ascription; attribution; reversion; return; restoration
style; way; shape; form; appearance; state
color scheme; colour scheme
is something that; is that which
playing at (something); game of make-believe; something done together
hall; saloon; spacious room; reception room