iron wall; impregnable fortress; impregnable; invulnerable; unassailable
to pattern after; to liken to; to imitate
fusion; melting; liquefaction
flat-tasting; bland; lacking in flavor; dull; flat; unimaginative
mastery; learning through experience; realization; realisation; comprehension
to result in death; to lead to death; to be fatal (e.g. disease)
permanent; perpetual; persistent; lasting
capacity; volume; capacitance
contraction; narrowing; stricture; stenosis
to suffer an embarrassing defeat
king; monarch; ruler; champion
intelligence; intellect; brains
restive horse; unmanageable person (esp. a woman); shrew; stubborn tomboy
truthfulness; credibility; sincerity; honesty; good faith
to roll up; to be rolled up
to rise (of a building, mountain, etc.); to tower; to soar
control of the air; air supremacy
to knock down; to knock off
arranged; taken care of; settled; completed; finished
field in which one acts unchallenged; unrivaled sphere of activity (unrivalled); one's monopoly
law-like nature; regularity
to droop (e.g. ears of grain); to bow one's head; to hang one's head
atrocious; fiendish; brutal; villainous
subordinate; underling; henchman; minion
dark; gloomy; depressed; dispirited; dark (in colour); dull; ill-boding
to take a peep at; to catch a glimpse of
to cover up the sky (e.g. smoke)
pillar of fire; blazing column