important; momentous; essential; principal; major
certain; one; (arch.) I; (arch.) me
obstruction; check; hindrance; prevention; impediment; interdiction
throwing in; inserting; investment; commitment (of funds, personnel, etc.); launching (a product into the market); introduction
not factored in; not included in calculations; unaccounted for; unplanned for
to be extremely difficult; to present a major challenge
isolation; being alone; being friendless
siege; encirclement; envelopment; surrounding; besiegement
to lead; to spearhead (a group); to command (troops)
piece; fragment; one (object)
to run out of; to dry up; to be depleted; to hit the bottom; to bottom out
attitude; posture; preparedness; readiness
to put back up; to stand back up; to restore (to former strength); to revive (e.g. the economy); to make again (a plan, policy, etc.); to reformulate
evacuation; withdrawal; revocation; repeal; retreat
rest; break; recess; intermission
to push out; to project; to stick out; to hand over (e.g. to the police)
possibly; apparently; (seem) likely; somehow or other; with difficulty; barely
supply; supplying; replenishment
force; unit; corps; squad; troops; party
on the way; en route; in the middle of; midway; halfway
dying in vain; wasteful sacrifice of life
one side; one party; counterpart; one of a pair; fellow; mate
other than; excluding; without
to ask; to inquire; to blame (someone) for; to accuse of; to care about; to regard as important
goblin; apparition; monster; ghost; phantom; spectre
anxiety; uneasiness; worry; apprehension; fear; insecurity
battlefield; battleground
brilliant; splendid; glorious; magnificent; spectacular
distinguished war service; merit of war
parent; parents; dealer (in cards, mahjong, etc.); banker; founder; inventor; (pet) owner
to abandon; to fail; to desert; to forsake
to put one's life on the line; to risk one's life; to put everything one has into it
to swear; to vow; to take an oath; to pledge
to tear; to rip; to break through (cordon, opponent's defense, etc.); to breach; to defeat; to beat; to break (e.g. silence)
aviation; flight; flying; to fly; to take a flight
opponent; rival; adversary; menace; danger; threat