butterfly (swimming stroke); G-string; gee-string
national convention; national competition; national athletic meet
conversion; shift; about-face; switch
supervision; control; superintendence; director; superintendent; supervisor
leader; guide; mentor; coach
obsession; fixation; complaining; criticizing; speciality (e.g. of restaurants)
auxiliary device; auxiliary equipment
speed; velocity; pace; velocity
stroke (of a racket, in swimming, etc.)
a gap develops; a significant difference emerges
to cut corners; to be shoddy
leading; foremost; preeminent; outstanding; one of the best
highest rank; highest position; high-end; highest-order; most-significant (e.g. bit)
fatigue; weariness; exhaustion; tiredness
wise; sagacious; intelligent; sensible
severe; harsh; stringent; rigorous; strict; unfair
demand; firm request; requisition; requirement; desire
stickiness; viscosity; tenacity; persistence
simultaneous; concurrent; same time; synchronous; together
arriving at the same moment
practical; actual; de facto; in essence; in all but name
side; flank; profile; aspect; dimension
person concerned; people involved (in an event); those concerned; staff
to get permission; to get approval; to get the go-ahead
outsider; someone outside of a group
institution; establishment; facility; home (for elderly, orphans, etc.)
divine spirit; spirit of the dead
Japanese representative; Japanese delegate; Japanese delegation
grace; refinement; elegance; daintiness
silver hair; gray hair; grey hair
to compete with; to vie for
relaxed; familiar; easy to access; friendly
expressing one's feelings; communicating one's intention; declaration of intent
acquaintance; relation; affinity; reason
enemy movements; enemy's position
pronunciation; production of sound
inexperienced; unfamiliar (with); unversed; lacking experience