failure;  mistake;  blunder
 a question (an issue) of where responsibility (liability) lies;  a question of who is responsible (to blame)
 development;  growth;  development (of a situation, story, etc.);  advancement;  playing around;  having an active sex life
 worry;  concern;  anxiety;  care;  help;  aid
 foot of a mountain;  base of a mountain
 president (of an organization);  director general;  governor (of a central bank);  party leader (esp. LDP)
 good;  fine;  excellent;  favorable;  favourable;  satisfactory
 accumulation;  retention;  collection;  sequestration (as in carbon dioxide sequestration);  storage (usually a liquid, e.g. rainwater, or behind a dam.)
 not less than;  ... and over;  beyond (e.g. one's expectations);  above;  above-mentioned;  aforementioned
 to strike (gold, oil, etc.);  to find (e.g. buried treasure);  to dig up
 potentiality;  likelihood;  possibility;  availability
 to get strong;  to gain strength
 by all means;  at all costs;  absolutely
 to be (of animate objects);  to exist;  to stay;  to be ...-ing;  to have been ...-ing
 while;  during;  while;  although;  all;  both
 to dig through;  to drill into;  to excavate
 that is to say;  so that means
 hope;  promise;  expectation;  anticipation;  side of a structural member
 have to (verb);  must (verb);  is indispensable;  absolutely necessary
 normal;  ordinary;  normally;  ordinarily;  local train;  train that stops at every station
 Mr.;  Mrs.;  Miss;  politeness marker
 as (for);  for;  in the capacity of
 to stop;  to abort;  to discontinue;  to close
 your house;  your home;  your husband;  your organization;  you
 only;  just;  merely;  as much as;  to the extent of;  enough to
 to be (in contrast to something that is not the case)
 to be decided;  to be settled;  to be unchanging;  to be the same (as always);  to be a fixed rule;  to be destined;  to be well executed (of a manoeuvre in a sport, game, etc.)
 place;  spot;  address;  district;  area;  one's house;  point
 and;  besides;  because;  since;  the thing is;  for one thing
 this;  this one;  this person;  now;  this point (in time);  here;  used to stress the subject of a sentence
 at once;  immediately;  right now
 even if ...;  even supposing that ...;  also as ...;  also for ...;  also from the position of ...
 loss;  damage;  harm;  disadvantage;  handicap;  drawback
 nature;  spontaneity;  natural airhead
 nicely;  properly;  frequently;  often;  I'm glad that you ...;  thank you for ...
 line;  stripe;  line (e.g. telephone line);  wire;  ray (e.g. X-ray);  beam;  line (e.g. of a railroad)