dangerous; unsettled; troubled; disturbed; insecure
to jump out; to leap out; to appear (suddenly); to emerge; to protrude; to project
atrocious; heinous; fiendish; brutal; vicious
to catch; to capture; to grasp (e.g. meaning); to perceive; to captivate; to move (one's heart)
underground; below the ground; world of the dead; the grave; underground (activities, movement, etc.); secret
once; before; formerly; never yet; never before; first time
superior; special class; higher than A class; extraordinary
labyrinth; maze; mystery; dungeon
name; given name; title; fame; renown; pretext
10,000; ten thousand; 10^4
complex; complicated; intricate; mixed (feelings)
road; path; route; way; distance; journey; road (e.g. to victory)
to become complicated; to become intricate; to become tangled
not only ... but (also); as well as ...
shuffle (of playing cards, etc.); rearranging (in a random order); shaking (a container to mix ingredients, etc.)
maze; labyrinth; inner ear
certain; sure; definite; reliable; sound; solid
movement; transfer; migration; mobile; moving; traveling
without change; as is; just like; extremely similar; immediately; just after
practical use; application; making good use of; conjugation; inflection
symbol (of something abstract); emblem; (symbolic) representation
article; goods; fine thing; fellow; (arch.) prostitute; (arch.) price
(one's) exclusive use; private use; dedicated use; use for a particular purpose; exclusive use (of particular products); using only (e.g. a certain brand)
putting into operation; invocation
scary; frightening; eerie; dreadful
already; now; no longer; not any more
being put off (by someone's words, behaviour, etc.); being taken aback; recoiling (in shock, disgust, etc.); zooming out or pulling the camera back to get a wider image
calm; quiet; gentle; moderate; reasonable; amicable
permission; approval; authorization; license
to descend (e.g. a mountain); to go down; to alight (e.g. from bus); to get off; to step down; to retire; to be granted
reaction; response; physical reaction (to a stimulus); observable response (of an organism); reaction; effect
to remake; to remold; to remould; to convert; to reconstruct; to adapt
button (clothing); push-button; button
to push; to thrust; to press (down); to push (e.g. a button); to stamp (e.g. one's name); to affix (a seal); to affix (e.g. gold leaf)
via; through; by doing; by means of; using
anyone; anybody; everyone; everybody; whoever
optional; voluntary; arbitrary; arbitrary
target (e.g. of a marketing campaign); subject (of a survey, investigation, etc.); intended audience; eligible person; person entitled (to); recipient
to (take out and) show; to demonstrate; to point out (finger, clock hand, needle, etc.); to indicate; to show
indeed; really; very; extremely; absolutely; certainly
hastily constructed; hastily built; made in a hurry; jerry-built; makeshift
to be lucky; to be in luck; to be attached; to have; to be included
fearfully; timidly; nervously; cautiously; gingerly