to narrow in (on); to home in; to focus; to target
encroachment; erosion; corrosion
violent emotion; passion; fury
cool-headed; level-headed; hard-headed
coexistence; living together
inevitable; inescapable; unavoidable
to reduce (one's) speed; to slow down (driving, cycling, etc.)
easy; simple; ready; casual; off-hand; easy-going
mouse; rat; dark gray; dark grey; slate (color, colour)
petrifaction; petrification; mineralization; mineralisation; lithification; fossilization
intake (e.g. of salt); ingestion; absorption (e.g. of new knowledge); adoption (e.g. of foreign culture); reception and protection
to disappear; to vanish; to go; to leave; to die
to get cracked; to develop a crack; to be fissured
(some type of) enthusiast; somebody possessed of a (certain kind of) mental abnormality
full capacity; all one's ability
joke; pun; jest; smartly dressed; stylish; fashion-conscious
counting backwards; calculating backwards; inverse operation; reverse operation
naturally; of course; understandably
to exchange; to swap; to barter; to replace; to substitute
form (as opposed to substance); formality; method; system; format; mode
feeling a sudden chill; feeling a shiver; feeling sudden surprise (fright, horror, etc.); shuddering
loss of strength; exhaustion; weakness
beyond help; past salvation; incorrigible; irredeemable
correction (of fault, defect, flaw, etc.); remedy; rectification; redress; reform
inspection; study by observation; field trip; sitting out (e.g. PE class)
to grow timid; to cower; to become perverse; to become contrary; to be cramped; to be constrained
four-eyed; pattern of four squares
main spindle; main shaft; linchpin; pivot; principal axis; main axis
utilization rate; usage rate; occupancy rate
straight (ahead); direct; upright; straightforward; honest; frank
slashing a sword diagonally from the shoulder
to beat; to gain a point; to upset
to be jealous of; to envy; to begrudge
to drive (e.g. horse, carriage); to control; to manage