to slip down;  to slide down;  to glide down
 to backfire;  to have a harmful result
 force;  vigor;  influence;  authority;  impetus;  momentum
 to cut off;  to cut up;  to tear to pieces
 tear;  rip;  rent;  slit;  crack;  chasm
 depths of Hell;  abyss;  inescapable situation
 to wait;  to await;  to look forward to;  to depend on;  to need
 dull (e.g. a knife);  blunt;  thickheaded;  obtuse;  dull (sound, color, etc.);  dim (light)
 sound of something falling
 finally;  at last;  in the end;  after all;  never (happened)
 (some type of) enthusiast;  somebody possessed of a (certain kind of) mental abnormality
 to be filled with strength;  to be filled with effort;  to be enthusiastic about;  to be tired (ironic)
 quick;  swift;  nimble;  quick (understanding, judgement, etc.);  alert;  prompt
 calculation;  reckoning;  count;  forecast
 until now;  so far;  up to the present
 habit (often a bad habit, i.e. vice);  tendency;  peculiarity;  idiosyncrasy;  crease;  wrinkle
 class;  order;  et cetera;  etc.;  equal;  iso-
 to take;  to pick up;  to pass;  to hand;  to get;  to obtain;  to adopt (a method, proposal, etc.)
 very likely;  very probable
 to be sufficient;  to be enough;  to be worth doing;  to be worthy of;  to do (the job);  to serve
 fast;  quick;  early (in the day, etc.);  premature;  (too) soon;  not yet
 accurate;  correct;  precise;  exact
 centre of gravity (center);  centroid;  barycenter;  (one's) balance
 to sharpen;  to grind;  to whet;  to hone;  to make keen
 breathing;  respiration;  knack;  trick;  harmony;  balance
 to draw (a thread);  to let out (e.g. a rope);  to head out as a group;  to set out in large numbers;  to send out one after another;  to dispatch
 great speed;  extreme speed;  swiftness
 area;  domain;  territory;  field;  range;  region
 scaffold;  scaffolding;  foothold;  footing;  foothold (e.g. in business);  foundation
 to stretch around (e.g. a fence, dragnet, etc.);  to lay out (e.g. a wiring system, network, etc.);  to string up (e.g. an antenna, ship's rigging, etc.)
 even;  flat;  level;  calm;  peaceful;  uneventful
 speed;  velocity;  pace;  velocity
 to run through;  to run past
 to add;  to add up;  to increase;  to gather (e.g. speed);  to include;  to count in
 to swing downward;  to bring down (one's sword, fist, etc.)
 to exceed (esp. figures: profits, unemployment rate, etc.);  to surpass;  to be more than;  to be better than
 small amount;  jot;  nothing much;  (to a) slight degree;  wee bit
 to fall behind;  to lag behind;  to lose (race, contest)
 (a) little;  (a) few;  slight;  only;  just;  merely