gray zone; grey zone; gray area
to collapse; to crumble; to get out of shape; to lose one's shape; to break down; to be thrown into disarray; to crash (stock market)
encryption; encipherment; password protection
misconstruction; distortion; misinterpretation; misunderstanding; perversion; contortion
change; alteration; modification
to gulp down; to swallow deeply; to understand; to take in; to engulf; to swallow up
secret technique; secret art
ordinary; sensible; commonplace
grasp; catch; understanding
presumption; assumption; estimation
to carry to extremes; to go to the end of something; to investigate thoroughly; to master
understanding; comprehension; grasp; perception; appreciation; mastery (of an art or skill)
every year; yearly; annually
instability; insecurity; crankiness
selection; choice; option
to tie; to bind; to bear (fruit); to close (e.g. deal); to confirm; to connect (two distant places); to close tightly
gatekeeper; door guard; doorman; concierge; janitor
guarantee; security; assurance; pledge; warranty
defense; defence; guard; policing; security
exercise; physical training; appeal; campaign; motion; movement
leaping; activity; leapfrog (over a problem); making a leap (e.g. in logic); making great strides; making rapid progress
to harm; to cause harm to
to apply correspondingly; to correspond to; to be proportionate to; to conform to
death penalty; capital punishment
event; affair; incident; case; plot; trouble
frame; framework; border; box; limit; restriction; category
insular; closed; unsociable; exclusive
foreign; abroad; overseas
to surpass; to outdo; to excel; to tower above (the surrounding landscape)
difficult to understand; unintelligible; abstruse
small fraction; small proportion
to establish; to formulate
tire track; traces of a person or thing; path one has taken; locus
to grapple with; to wrestle with; to engage in a bout; to tackle (e.g. a problem); to come to grips with; to work hard on
front-facing; forward-looking; positive; constructive
valuation; appraisal; evaluation; appreciation; recognition; acknowledgement
to do for (someone); to take in; to deceive; to hoodwink
face; surface; mask (esp. a noh or kyogen mask)