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
 in front (of);  before (e.g. a building);  before;  earlier;  (the) front;  frontal part;  forward
 so far;  up to now;  hitherto;  that's enough (for today);  it ends here
 indicates word or phrase being defined;  used for quoting (thoughts, speech, etc.);  with;  (not) as much as;  (not) so much as;  the fact that
 somewhere;  anywhere;  in some respects
 to differ (from);  to vary;  to not be in the usual condition;  to not match the correct (answer, etc.);  to be different from promised;  isn't it?
 to paint (draw) a picture
 wonderful;  marvelous;  strange;  strangely enough;  oddly enough;  for some reason
 indicates sentence subject (occasionally object);  indicates possessive (esp. in literary expressions);  but;  however;  regardless of;  whether (or not)
 to appear;  to come in sight;  to become visible;  to be expressed (e.g. emotions);  to become apparent (e.g. trends, effects)
 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
 father (esp. used in samurai families prior to the Meiji period)
 that gentleman;  that lady;  he;  she
 talk;  speech;  topic;  subject;  discussions;  negotiation;  rumor
 to be;  to exist;  to have;  to be located;  to be equipped with;  to happen
 if;  when;  and;  with;  used for quoting (thoughts, speech, etc.);  promoted pawn;  indicates a question
 to say;  to utter;  to name;  to call;  to go (e.g. "the alarm went ping");  to make a noise
 everyone;  everybody;  all;  everything;  all
 to give;  to let (one) have;  to give;  to do for one;  to take the trouble to do;  to do to someone's disadvantage
 nicely;  properly;  frequently;  often;  I'm glad that you ...;  thank you for ...
 to understand;  to comprehend;  to become clear;  to be known;  I know!;  I think so too!