(an) unknown; unknown number; variable; unknown quantity; not yet known
to get on (train, plane, bus, ship, etc.); to get in; to get on (e.g. a footstool); to step on; to reach; to go over; to follow
beneficial; profitable; useful; helpful; instructive
to obtain; to come into possession of; to get hold of; to get one's hands on
but; however; provided that
unusual event; strange occurrence; strange phenomenon; something abnormal; change (for the worse); accident
to convey; to report; to transmit; to communicate; to tell; to impart
minimum; lowest; minimal; least
to advance; to go forward; to precede; to go ahead (of); to make progress; to improve; to deepen
to start; to begin; to start up (a business, society, etc.); to open (e.g. a store); to start ...; to begin to ...
to walk noisily; to walk loudly
(made of) stone; stone-built
door; gate; opening; title page
to go by; to go past; to run (between; of a rail service, bus route, etc.); to operate (between); to go indoors; to go into a room; to penetrate
I fear that it's likely that; with all due respect
(in the) neighbourhood; neighborhood; around; about; for instance; say
to inform; to notify; to know; to reign
secret; secrecy; mystery; secret (e.g. to success); esoteric teachings
passage; pathway; roadway; avenue; aisle
anywhere; for all time; through thick and thin; come hell or high water; persistently; stubbornly
to become weak; to decline; to wear; to abate; to decay; to wither
foot; paw; leg; gait; pace; bottom structural component (i.e. radical) of a kanji; means of transportation
very; greatly; immense; enormous; serious; grave
from one's side; from the side (of something); from someone unconnected; from someone uninvolved
to support; to prop; to sustain; to hold at bay; to stem; to check
worry; concern; anxiety; care; help; aid
to greet; to call out (to); to invite; to get in touch (with); to cheer (on); to give vocal support (to)
proposal; proposition; suggestion
anxiety; uneasiness; worry; apprehension; fear; insecurity
bitter smile; wry smile; strained laugh; sarcastic laugh
fear; dread; dismay; terror; horror; scare
disorder; chaos; confusion; mayhem
to trap (into a difficult situation); to put (in a fix); to capture (a castle, fortress, etc.); to take; to drop (something) into
to talk; to tell; to recite; to pledge; to conspire with
negotiations; discussions; connection
wondrous; marvellous; uncanny; like a charm
evasion; avoidance; shirking; recusation (of a judge); taking exception (to a judge); challenge
feeling; sensation; emotion; interjection
to memorize; to memorise; to learn; to pick up; to feel; to think