puffing (e.g. cigarette smoke); bobbing (to the surface); floating lightly
to change; to swap; to change the object of one's interest or focus; to spend or take time; to infect; to permeate something with the smell or colour of something; to move on to the next or different stage of (a plan, etc.)
that way; that direction; there; that (one); you; your family
the end; the extremity; the limit; the limits; the result
year; age; years; past one's prime; old age
race (of people); type of person
several; various; divergent; conflicting; different; diverse
(air) bubble (esp. in a liquid)
-ical; -ive; -like; -ish; (something) like; along the lines of
to live; to exist; to make a living; to subsist; to be in effect; to be in use
stage; step; level; rank; order; stairs
artificial; man-made; imitation; synthetic
automatic; intransitive verb
stimulus; impetus; incentive; encouragement; motivation; provocation
pseudo; quasi; false; suspected (case, e.g. of disease)
(practical) experience; personal experience; hands-on experience; first-hand experience
whim; caprice; whimsy; fickle; moody; uneven temper
to be born; to come into the world
green; greenery (esp. fresh verdure)
plan; project; schedule; scheme; program; programme
rate; ratio; profit; assignment; 10%; unit of ten percent; match
to rely on; to depend on; to count on; to turn to (for help)
having no choice; at a loss for what to do; at one's wits' end
knee; lap; knee and thigh (while sitting)
generation (e.g. power); sending a telegram; telegraphing
plant (i.e. equipment, machinery, etc.); plant; vegetation
ownership; dominion; ownership rights; proprietorship; property rights
dispute; strife; quarrel; dissension; conflict; rivalry
to originate with; to start with; to stem from
multiplication table; times table
10^8; 100,000,000; hundred million
to drive to death (e.g. by suicide); to cause to die