sudden; abrupt; unexpected; unforeseen
reinforcement (e.g. of troops)
correspondence (to); equivalence; suitability; coordination; dealing with; coping with
adapting oneself to the requirements of the moment; playing by ear; ad hoc approach
action; conduct; behaviour; behavior; mobilization; mobilisation
demand; firm request; requisition; requirement; desire
appeal; call for something; request; axiom
direction of movement (motion); direction of travel (esp. train)
chief; main; principal; important
duty; function; office; mission; task
heating power; thermal power; firepower
regarding as important; attaching importance to; taking a serious view of; putting emphasis on
to harden; to freeze; to put together; to collect; to make secure; to stabilize; to fortify
defense; defence; safeguard; protection
strength; power; proficiency; ability
weak; frail; delicate; tender; unskilled; weak (wine)
main; principal; main dish; main course; main part; principal part
circumference; outskirts; environs; (computer) peripheral
vigilance; caution; alertness; precaution; being on guard
to be hit; to strike; to touch; to be in contact; to be equivalent to; to be applicable; to be right on the money (of a prediction, criticism, etc.)
foundation; basis; bedrock; substrate (circuit board)
general; universal; ordinary; average; (arch.) the same; (arch.) no different
far away; far off; far; long ago; long before
to pass; to elapse; to pass through; to go through; to experience; to go through
but (still); and yet; nevertheless; even so; notwithstanding
to lose focus; to let one's mind wander; to relax one's attention
annihilation; total destruction; complete destruction; crushing defeat
entrance; entry; gate; approach; mouth
revival (e.g. musical); come-back; restoration; rebirth; resurrection
to make a mistake; to mess up; to make an error; to err
restoration; rehabilitation; recovery; recovery (from an illness); recuperation; convalescence
to reach; to touch; to be delivered; to arrive; to be attentive; to be scrupulous
light (i.e. not heavy); feeling light (i.e. offering little resistance, moving easily); light (i.e. of foot); effortless; non-serious; minor; slight
special; particular; extraordinary; exceptional; especial
ingredient; (raw) material; unprocessed timber; raw timber; subject matter; topic
high efficiency; high performance
heel (of a shoe); heel (in pro wrestling); bad guy; player of villain roles
coolness; calmness; composure; all right; fine; OK
to be sacrificed; to fall victim to; to fall prey to
figure; form; appearance; dress; state; condition
special; particular; peculiar; unique
one; 1; best; first; foremost; beginning; start
(as alike as) two peas in a pod