ageing;  aging;  senile deterioration
 by means of;  due to;  because of;  according to
 to become weak;  to decline;  to wear;  to abate;  to decay;  to wither
 heart;  guts;  nerve;  central part
 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 be rejuvenated;  to feel young again
 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
 method of treatment;  cure;  remedy
 at (place, time);  in;  to (direction, state);  toward;  for (purpose);  because of (reason);  for
 ball;  sphere;  bead (of sweat, dew, etc.);  drop;  ball (in sports);  pile (of noodles, etc.);  bullet
 season (in nature, sports, etc.);  seasonal word or phrase (in haiku);  year
 national (e.g. hero, pastime, consensus);  relevant to all citizens;  popular on a national level
 actor;  actress;  player;  performer
 Mr.;  Mrs.;  Miss;  politeness marker
 pitiful;  unfortunate;  poor;  unpardonable;  regrettable
 don't;  do;  hey;  listen;  now, ...;  well, ...
 indicates sentence topic;  indicates contrast with another option (stated or unstated);  adds emphasis
 from now on;  after this;  in the future;  from here;  from this point
 myself;  yourself;  I;  me;  you
 indicates sentence subject (occasionally object);  indicates possessive (esp. in literary expressions);  but;  however;  regardless of;  whether (or not)
 what;  you-know-what;  that thing;  whatsit;  whachamacallit;  (not) at all;  (not) in the slightest
 to do;  to undertake;  to send;  to dispatch;  to put;  to move;  to give (esp. to someone of equal or lower status)
 to have been decided (so) that;  to have been arranged (so) that;  to be the result (of);  to be the outcome;  to be the reason (for)
 indicates a question;  or;  whether or not;  some- (e.g. something, someone);  hmm;  huh;  very
 to understand;  to comprehend;  to become clear;  to be known;  I know!;  I think so too!
 parent;  parents;  dealer (in cards, mahjong, etc.);  banker;  founder;  inventor;  (pet) owner
 looking like a ...;  acting as if a ...
 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.)
 myocardial rupture;  cardiac rupture;  heart rupture;  cardiorrhexis;  cardioclasis
 side effect;  adverse reaction
 is not;  am not;  are not;  isn't it?
 therapy;  treatment;  remedy;  cure
 splendid;  fine;  praiseworthy;  creditable;  legal;  legitimate
 effect;  effectiveness;  efficacy;  effects (e.g. sound effects, visual effects, special effects)
 be;  is;  did;  (have) done;  please;  do
 together (with);  at the same time;  in a lump
 natural span of life;  250 years old
 to advance;  to move forward;  to carry forward (plans, work, etc.);  to proceed with;  to raise;  to elevate
 use;  utilization;  utilisation;  application