river; stream; River; the ... river
to freeze; to be frozen over; to congeal
trace; tracks; site; remains; scar
trace; vestige; mark; sign; evidence
activity (of a person, organization, animal, volcano, etc.); action; movie (esp. during the silent movie period)
evaporation; disappearance (of people intentionally concealing their whereabouts); unexplained disappearance
but I suppose; it seems; probably; I guess
elucidation; explication; explaining; unravelling; clarification; understanding
tone (of voice); manner of talking
long; drawn-out; very long
to let fly; to make fly; to skip over; to leave out; to run fast; to drive fast; to spray
passage (of time); elapsing; progress; development; transit
suffering; distress; hardship; trial
sample return (mission); bringing back samples from another planet, asteroid, etc.
certainly; surely; definitely
theory; doctrine; opinion; view; rumour; rumor
proof; testimony; demonstration; verification; certification
to swell (out); to expand; to be inflated; to get cross; to get sulky; to pout
topic; subject; much talked about; topical; in the news
pregnancy; conception; gestation
purposely (of something needless, unexpected or seemingly counterproductive, etc.); daringly (doing something); not necessarily; not particularly; (arch.) definitely not
guilty (feeling, conscience, look, etc.); (feeling) uneasy
early; soon; quickly; swiftly; rapidly
to lose (through death) (e.g. wife, child)
he; she; that person; (arch.) you
(physical) appearance (of a person); one's face and figure
character (of a person); personality; disposition; characteristics; nature (of a thing, event, etc.)
meteorologist; climatologist; aerologist
singularity (climate); day in the calendar when a particular weather phenomenon is statistically likely to occur
specific; particular; designated; specifying; designating; identifying
probability; likelihood; chances
clear weather; fine weather; formal; ceremonial; cleared of suspicion
to lean (to one side); to incline; to be unbalanced (e.g. diet); to be unduly weighted towards; to be partial; to be biased
pretext; history; past; according to ...; ... says
unique; peculiar; singular
-ian (e.g. Italian); -ite (e.g. Tokyoite); -er (e.g. performer, etc.); person working with ...; man; person