observer; watchman; lifeguard
cavity; hollow; cave; hollow
compass (for drawing circles, etc.); pair of compasses; (mariner's) compass; length of one's stride; length of one's legs
South Pole; the Antarctic; Antarctica
underground; below the ground; world of the dead; the grave; underground (activities, movement, etc.); secret
high five; high touch (involvement of personal attention and service)
to envy; to be envious of; to be jealous of
Cthulhu (fictional deity created by H.P. Lovecraft)
fortune slip (usu. bought at a shrine); omikuji
to worry about (someone's welfare or comfort); to feel anxious about; to have apprehensions of
to use (as a tool) for one's own advantage; to use as a pretext; to use as an excuse
leading; guiding; commanding
starting point; origin; origin (of coordinate axes); datum point
to come back (to); to return to a starting point
floor; dance floor; sales floor; floor (of a building); storey
competitive swimming; swimming race
synchronization; synchronized swimming
technical; specialist; professional; exclusive
club; fraternity; sorority; clubhouse
lodging together; training camp; boarding house
opening (a door, window, etc.); leaving open; opening up (e.g. to the public); allowing (public) access
jump; plunge; dive; appearing without an appointment; bursting in; arriving unannounced
characteristic; (distinctive) feature; peculiarity; spot color; spot colour
trunks (swimming, boxing, etc.); trunks (underwear); boxers; boxer shorts
information board; building directory
quality; value; nature; inherent quality; logical quality
to keep in mind; to memorize
elevator landing; elevator hall
another thing; other things; another man's property
being startled; getting a shock
school swimsuit; regulation blue one-piece swimsuit worn by pupils in school-based swimming events
color; colour; color; character; coloring (one's hair); dyeing
to watch steadily; to stare
shaking (like a jelly); wobbling; with a jiggle