period of youth;  while young
 to be worried;  to be troubled
 very;  much;  greatly;  a lot of
 hole;  opening;  pit;  hollow;  burrow;  den;  deficit
 mouth;  opening;  hole;  mouth (of a bottle);  spout;  gate;  door
 great;  excellent;  very troublesome;  awful;  tiring;  tough
 empty air;  sky;  shunyata;  emptiness;  air force;  fruitlessness;  meaninglessness
 to leave;  to exit;  to leave (on a journey);  to depart;  to move forward;  to come to;  to get to
 same;  identical;  equal;  anyway;  anyhow;  in either case
 indicates a question;  or;  whether or not;  some- (e.g. something, someone);  hmm;  huh;  very
 than;  from;  out of;  except;  but;  more
 fast;  quick;  early (in the day, etc.);  premature;  (too) soon;  not yet
 geostationary orbit;  geosynchronous orbit
 from the standpoint of;  as a matter of (e.g. fact);  aboard (a ship or vehicle);  on top of;  first volume (e.g. book);  superior quality;  best
 to reach;  to get to;  to arrive at
 be considered;  be deemed;  be thought to be
 counter for occurrences;  a time;  an instance;  inning (baseball);  round;  episode;  chapter
 route;  path;  channel (e.g. sales, distribution)
 to go by;  to go past;  to run (between; of a rail service, bus route, etc.);  to operate (between);  to go indoors;  to go into a room;  to penetrate
 this way;  this direction;  here;  this (one);  I;  me
 endorsing and questioning the preceding statement;  lamenting reflections on the preceding statement
 no;  nay;  well;  er;  you're welcome;  not at all
 having done that;  if that is done;  if it is done in that way
 to get on (train, plane, bus, ship, etc.);  to get in;  to get on (e.g. a footstool);  to step on;  to reach;  to go over;  to follow
 shuttlecock;  shuttle service (e.g. bus);  shuttle (weaving);  space shuttle
 necessary;  needed;  essential;  necessity;  need;  requirement
 not less than;  ... and over;  beyond (e.g. one's expectations);  above;  above-mentioned;  aforementioned
 standing by;  awaiting an opportunity;  being on alert
 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)
 laser;  Light Amplification by Stimulated Emission of Radiation
 correspondence;  communication;  transmission;  news;  signal;  telecommunications
 receiving (a message, letter, email, etc.);  reception (radio, TV, etc.)
 for;  for the sake of;  to one's advantage;  because of;  as a result of
 movement;  transfer;  migration;  mobile;  moving;  traveling
 painful;  sore;  cringy;  embarrassing;  exceeding
 force (bulldoze) one's way through
 have no choice;  there is nothing but;  no more than
 slow;  time-consuming;  late (in the day);  towards the end (of the day or night);  later (than expected or usual);  late
 ah!;  oh!;  yes;  indeed;  aah;  gah