change; modification; alteration; revision; amendment
progress; advance; improvement; development
(physical) growth; development
something; some kind of; for some reason
to begin to write; to begin writing; to begin to draw; to begin drawing; to begin painting
risk aversion; risk reduction
equation; formula; method for solving a problem; set way of achieving a particular result
specific; particular; designated; specifying; designating; identifying
expected value; expectation value; expectation
uncertain; unreliable; inauthentic; insecure
option trading; option dealing; option transaction
puzzling; tangled; complicated; complex
pricing; (price) positioning
perception; intuition; the sixth sense
to give (as a gift); to present; to confer; to bestow; to award
darkness; the dark; bewilderment; despair; hidden place; secrecy
faint; indistinct; dim; (arch.) few; (arch.) a little
regular; normal; formal; legal; established; legitimate
top and bottom; high and low; going up and down; rising and falling; going and coming back; upper and lower classes
spread; extension; influence; aftereffect; ripple
business conditions; the market; good (economic) times; prosperity; liveliness; energy
billiards; pool; serial collisions (of cars)
thought; consideration; thinking
length of time which food products will keep; to keep a long time
observation; survey; watching
correlation; interrelation
it does not mean that ...; I don't mean that ...; it is not the case that...
how many months?; how long?
high temperature and humidity