indicates sentence topic;  indicates contrast with another option (stated or unstated);  adds emphasis
 sky;  air;  ether;  firmament;  the heavens
 indicates possessive;  nominalizes verbs and adjectives;  substitutes for "ga" in subordinate phrases;  (at sentence-end, falling tone) indicates a confident conclusion;  (at sentence-end) indicates emotional emphasis;  (at sentence-end, rising tone) indicates question
 at (place, time);  in;  to (direction, state);  toward;  for (purpose);  because of (reason);  for
 to attack;  to assail;  to succeed (someone in a post, role, etc.);  to make a sudden visit
 to come (spatially or temporally);  to approach;  to come back;  to do ... and come back;  to come to be;  to become
 eye;  eyeball;  eyesight;  sight;  look;  stare;  notice
 demon;  devil;  evil spirit;  -crazed person;  -obsessed person;  fiend
 to throw down;  to bring down;  to kill;  to defeat;  to overthrow;  to trip up
 to revive;  to come to oneself;  to be restored to life
 good;  advantage;  sake;  purpose;  consequence;  result
 Kamen Rider (TV series, the titular character)
 hero;  heroine;  Eroica Symphony (Beethoven, 1804);  Heroic Polonaise (Chopin)
 indicates direct object of action;  indicates subject of causative expression;  indicates an area traversed;  indicates time (period) over which action takes place;  indicates point of departure or separation of action;  indicates object of desire, like, hate, etc.
 to collect;  to assemble;  to gather
 truth;  reality;  sincerity;  honesty; (arch.)  that's right
 (one's) older brother;  young man;  sonny;  lad
 thought;  imagination;  mind;  desire;  wish;  love
 to catch;  to stop the blow;  to react to;  to take (advice, etc.);  to accept
 everyone;  everybody;  all;  everything;  all
 to survive;  to continue living;  to escape death
 to make war (on);  to wage war (against);  to compete (against);  to struggle (against adversities, etc.);  to fight
 to leave (behind);  to leave (undone);  to not finish;  to save;  to set aside;  to leave (to someone, esp. after one's death)
 time;  hour;  period;  class
 behind;  rear;  after;  later;  remainder;  the rest;  more (e.g. five more minutes)
 Sunday;  day (of the month);  counter for days;  Japan
 people;  men and women;  each person;  everybody
 merry voices (e.g. of children playing)
 (one's) older brother;  lad;  sonny
 pretty;  lovely;  clean;  clear;  completely;  entirely
 be;  is;  did;  (have) done;  please;  do
 right?;  isn't it?;  hey;  say;  you know;  you see;  will you?
 yes;  yeah;  hum;  hmmm;  oof
 -ness;  indicates assertion;  come;  come now
 chance to win;  opportunity to win;  chance of victory
 honorific/polite/humble prefix
 older brother;  elder brother
 going out (of a nobleman, etc.);  visiting
 indicates sentence subject (occasionally object);  indicates possessive (esp. in literary expressions);  but;  however;  regardless of;  whether (or not)