whether or not (in phrases like "I don't know whether or not I can come")
 confirmation;  verification;  validation;  review;  check;  affirmation
 direction;  way;  side (of an argument, etc.);  one's part;  type;  category;  field (of study, etc.)
 point;  tip;  head (of a line);  front;  first;  before;  (the way) ahead
 to take the form of (esp. in ref. to a spirit, fox, raccoon dog, etc.);  to assume the shape of;  to disguise oneself as;  to change radically;  to metamorphose;  to improve unexpectedly and dramatically (esp. of an actor, artist, rikishi, etc.)
 zero;  0;  nought;  nothing;  zilch
 ringtone (of mobile phones, portable phones, cellphones, etc.)
 this way;  this direction;  here;  this (one);  I;  me
 the Eastern Capital (now Tokyo);  Yedo;  Edo
 government;  administration
 official residence (e.g. of the prime minister)
 military forces;  hosts;  troops
 to attack;  to assault;  to assail
 to come (spatially or temporally);  to approach;  to come back;  to do ... and come back;  to come to be;  to become
 place;  location;  room;  space;  basho;  wrestling tournament
 sound;  noise;  note;  fame;  Chinese-derived character reading
 today;  this day;  these days;  recently;  nowadays
 companion;  partner;  other party;  addressee;  opponent (sports, etc.)
 what;  how many;  many;  a lot of;  several;  a few
 talk;  speech;  topic;  subject;  discussions;  negotiation;  rumor
 to play dumb;  to feign ignorance;  to play the fool;  to be in one's dotage
 whereabouts;  place;  location;  place where one belongs;  where one fits in;  place where one can be oneself
 where;  what place;  how much (long, far);  what extent
 now;  the present time;  just now;  another;  more
 to protect;  to guard;  to defend;  to keep (i.e. a promise);  to abide (by the rules);  to observe
 concentration;  focusing;  convergence;  within a collection of works
 two persons;  two people;  pair;  couple
 metamorphosis;  disguise;  transformation;  shapeshifting;  morphing
 awfully;  frightfully;  desperately;  violently;  unduly;  extremely
 to be silent;  to say nothing
 than;  from;  out of;  except;  but;  more
 to weigh on one's mind;  to bother one;  to be interested (in);  to be curious (about);  to feel like (doing);  to feel inclined to
 how;  in what way;  how about
 what!;  oh;  what the heck;  what the;  damn
 that;  that thing;  that person;  then;  that time;  that place (over there);  down there (i.e. one's genitals)