indicates sentence topic;  indicates contrast with another option (stated or unstated);  adds emphasis
 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 protect;  to guard;  to defend;  to keep (i.e. a promise);  to abide (by the rules);  to observe
 for;  for the sake of;  to one's advantage;  because of;  as a result of
 person;  someone;  human beings;  mankind;  human (Homo sapiens);  (other) people;  others
 to kill;  to slay;  to suppress;  to block;  to suppress (a voice, feelings, etc.);  to hold back
 today;  this day;  these days;  recently;  nowadays
 too;  also;  both A and B;  A as well as B;  even;  as much as
 together (with);  at the same time;  in a lump
 to return;  to come home;  to leave;  to get home;  to get to home plate
 spread-out sail;  full sail;  (sailing) downwind
 by myself;  in person;  by oneself
 to make war (on);  to wage war (against);  to compete (against);  to struggle (against adversities, etc.);  to fight
 have no choice;  there is nothing but;  no more than
 at (place, time);  in;  to (direction, state);  toward;  for (purpose);  because of (reason);  for
 to lose;  to be defeated;  to succumb;  to give in;  to be inferior to;  to break out in a rash due to (e.g. lacquer, shaving, etc.)
 from (e.g. time, place, numerical quantity);  since;  from (originator);  by;  because;  since;  out of (constituent, part)
 foster child;  adopted animal (e.g. pet)
 inside;  within;  while (e.g. one is young);  during;  among;  amongst;  in (secret, chaos, poverty, etc.)
 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
 indicates sentence subject (occasionally object);  indicates possessive (esp. in literary expressions);  but;  however;  regardless of;  whether (or not)
 to do;  to carry out;  to cause to become;  to make (into);  to serve as;  to act as;  to wear (clothes, a facial expression, etc.)
 thing;  matter;  incident;  occurrence;  circumstances;  situation;  work
 to say;  to utter;  to name;  to call;  to go (e.g. "the alarm went ping");  to make a noise
 to pierce;  to stab;  to sting;  to bite;  to sew;  to stitch;  to pole (a boat)
 sound;  noise;  note;  fame;  Chinese-derived character reading
 suffix for familiar person
 after all;  because;  but;  even;  too;  as well
 to attack;  to assail;  to succeed (someone in a post, role, etc.);  to make a sudden visit
 to become;  to get;  to result in;  to turn out;  to consist of;  to be composed of;  to be completed
 to make a mistake (in);  to commit an error;  to be wrong;  to be incorrect;  to mislead;  to misguide
 to finish;  to stop;  to close (a business, etc.);  to close down;  to put away;  to put back
 this;  last (couple of years, etc.);  these;  you (as in "you liar")
 day;  days;  sun;  sunshine;  (the) day;  daytime;  date
 murder;  homicide;  manslaughter
 chain;  chaining;  connection;  (genetic) linkage
 pluralizing suffix (esp. for people and animals; formerly honorific)
 if;  when;  and;  with;  used for quoting (thoughts, speech, etc.);  promoted pawn;  indicates a question
 same;  identical;  equal;  anyway;  anyhow;  in either case