absolutely; definitely; unconditionally
hazardous materials; dangerous goods; explosives; combustibles
to find difficult to guess; to struggle to work out; to be unable to figure out
secret; secrecy; mystery; secret (e.g. to success); esoteric teachings
permission; approval; authorization; license
without authority; without reason; unnecessarily; recklessly; indiscriminately
to catch the eye; to attract attention
this; our; right; justice; checking account
deepest part; deepest portion; depths (of the ocean etc.); innermost
secrecy; confidentiality; privacy; one's circumstances (esp. fiscal)
trust (in); confidence; faith; reliance
guidance; leading (the way); information; notice; announcement (of a visitor's arrival); informing (someone) of a visitor's arrival
entrance; entry; gate; approach; mouth
(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)
bookshelves; bookshelf; bookcase
old-fashioned; ancient-looking; time-worn
to rearrange; to reorder; to move around; to sort; to collate
shelf; ledge; rack; trellis
to replace; to substitute; to switch; to move (something); to transfer
to slide; to slip off; to get dislocated; to be out of alignment; to get dislodged; to deviate
(made of) stone; stone-built
passage; pathway; roadway; avenue; aisle
to light (a candle, lamp, etc.); to turn on (a light)
(stand to) attention!; standing at attention
cool; chilly; feeling nice and cold
stairs; stairway; staircase
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
to go up the stairs; to climb the stairs
often; again and again; over and over again; repeatedly; frequently
branch road; forked road; branch; crossroads (of a course of events); turning point; parting of the ways
faint; dim; weak; poor; wretched; meagre
to penetrate; to pervade; to spread
weird; eerie; ominous; creepy; uncanny; unearthly
labyrinth; maze; mystery; dungeon
intruder; invader; trespasser; raider
to refuse; to reject; to decline; to prevent (from doing); to deny (e.g. access); to block
to turn back; to go back; to come back; to return; to retrace one's steps