calculation; reckoning; count; forecast
at a young age; while still young
postbox; mailbox; post; position; post (e.g. goalpost); post- (e.g. post-Cold War)
to be grounded on; to be based on; to be due to; to originate from
person with a lot of experience; old hand; veteran (in a particular field)
to be preeminent; to be outstanding
difficulty; hardship; trouble; infeasibility; inability (to carry out)
error; mistake; fault; sin; wrongdoing; offense
hedge; fence; border; limit
establishment; founding; incorporation (of a business)
sick person; patient; invalid
high efficiency; high performance
head; brains; intellect; understanding
to wait for one's chance; to wait for an opportunity
odour; odor; scent; aura; whiff; smacks of ...
to sniff out; to get wind of
even if; no matter (what); if; though; although; supposing
about; concerning; related to; -ish
even if ...; even supposing that ...; also as ...; also for ...; also from the position of ...
by means of; due to; because of; according to
space alien; alien; extraterrestrial being
abduction; kidnapping; kidnaping
to entangle; to entwine; to pick a quarrel; to find fault; to be involved with; to be influenced by
major incident; major happening; big scandal
a little; a bit; just a minute; for a moment; somewhat; rather; (not) easily
to guide; to lead; to show the way; to derive; to deduce
official; formal; formula (e.g. mathematical); official (social media) account (of a company, organization, etc.)
resolution of an incident; solution to a (criminal) case
contribution (furthering a goal or cause); services (to a cause)
announcement; publication; presenting; statement; communique; making known
what people say; rumours; public opinion
door (esp. Japanese-style); shutter; window shutter; (arch.) entrance (to a home); (arch.) narrows
to stand up; to put up; to thrust into; to bury into; to make (a noise); to start (a rumour); to make
network; Internet; net (hair, netball, etc.); net (price, weight, etc.); nett
society; public; community; social studies
recently; lately; these days; nearest; closest
to hear a rumor; to get wind of