20 years old; (arch.)  twenty
 year;  counter for years (e.g. of an era), grades (e.g. school);  period of an apprentice's contract (usu. ten years)
 today;  this day;  these days;  recently;  nowadays
 from now on;  after this;  in the future;  from here;  from this point
 clearly;  plainly;  distinctly;  to be clear;  to be definite;  to be certain
 direction;  way;  side (of an argument, etc.);  one's part;  type;  category;  field (of study, etc.)
 to arrive at;  to reach;  to sit on;  to sit at (e.g. the table)
 resolution;  vote;  decision
 confrontation;  opposition;  antagonism
 to doubt;  to distrust;  to be suspicious of;  to suspect
 place;  room;  margin;  scope
 nonexistent;  not being (there);  unowned;  not had;  unique;  not;  impossible
 party;  banquet;  reception;  feast;  dinner
 to talk;  to speak;  to tell;  to explain;  to speak (a language)
 time;  hour;  occasion;  case;  chance;  opportunity
 to think, feel, consider, know, etc.
 to be lucky;  to be in luck;  to be attached;  to have;  to be included
 this;  this one;  this person;  now;  this point (in time);  here;  used to stress the subject of a sentence
 privacy;  secrecy;  confidentiality
 certainly;  of course;  even if;  no matter (who, what, when, where, why, how);  without even;  without so much as;  at the (least, earliest, etc.)
 still;  as yet;  (not) yet;  more;  (more) still;  at least
 to throw;  to cast (e.g. vote, light, shadow);  to devote oneself (e.g. to a cause);  to invest;  to put in;  to administer (medicine);  to give
 direction;  way;  person;  lady;  method of;  manner of;  care of ...
 to flicker;  to glimmer;  to flit;  to fall lightly (snow, rain)
 no problem;  all right;  not an issue;  unobjectionable
 safe;  secure;  certainly;  surely;  no thanks;  I'm good
 seems;  I think;  I guess;  don't you agree?;  I thought you'd say that!
 when it comes to ...;  where ... is concerned;  if it's the case that ...;  if it turns out that ...;  if it's true that ...
 by all means;  at any cost;  whether (one is) willing or not;  willingly or unwillingly;  on no account;  by no means
 question (e.g. on a test);  problem;  problem (e.g. societal, political);  question;  question (i.e. doubt);  public discussion
 Lord;  Sir;  state minister (under the ritsuryo system); (arch.)  you (in reference to someone of lower status)
 the expectation is that ...;  the reason is that ...;  the fact is that ...;  the explanation is that ...;  it is that ...
 right?;  isn't it?;  hey;  say;  you know;  you see;  will you?
 but;  however;  (and) yet;  nevertheless;  still;  for all that
 distinction;  difference;  separate;  different;  exception;  exclusion
 wrong;  not good;  hopeless;  past hope;  must not do
 to seal (letter);  to prevent;  to forbid;  to block
 to be crowded;  to be packed;  to be complex;  to go into;  to put into;  to do intently
 firm;  determined;  resolute;  conclusive