hunting; hunt; gathering (mushrooms, shellfish, etc.); picking (berries, fruit, etc.); hunting down (a criminal, etc.); rounding up (e.g. communists)
hole; opening; pit; hollow; burrow; den; deficit
to dig; to excavate; to delve into; to dig up (vegetables, treasure, etc.); to mine (coal, ore, etc.); to top
cause; seed; variety; kind; counter for varieties
to succeed; to relieve; to take the place of; to substitute for; to be exchanged; to change (places with)
research; study; investigation
air; atmosphere; mood; situation; someone with no presence; someone who doesn't stand out at all
(all) through (e.g. the night); throughout (e.g. the year); within (e.g. the week); in the course of (e.g. today); all over; throughout (e.g. the world)
to live; to exist; to make a living; to subsist; to be in effect; to be in use
living thing; organism; creature; biology
system; lineage; ancestry; group (e.g. of colors) (colours); family (e.g. of languages); close (evolutionary) relationship
attenuation; damping; decay
(United States of) America; United States; US; America (land mass); the Americas
certain; one; (arch.) I; (arch.) me
airplane; aeroplane; plane; aircraft
manufacturer (esp. a major company); producer; maker; maker (person or device that makes something)
obtaining (a qualification, right, object, etc.); acquisition (of land, property, etc.); gaining possession (of); getting; purchase
patent; special permission; license; licence
story; tale; narrative; account; fable; legend
enthusiast; mania; enthusiasm
explosion; detonation; blast; outburst (of emotion); explosion (e.g. of anger); eruption (e.g. of discontent)
car; automobile; vehicle; wheel; castor; caster
by (means of); by doing; due to; via; through
to bend; to curve; to bend (the truth); to falsify; to corrupt; to sully
to breathe out; to breathe; to tell (a lie); to use (foul language); to vomit; to throw up
conclusion; decision; judgement; affirmative
pride; dignity; self-worth
cheap-looking; tawdry; insignificant
pity; sorrow; pitiable; pitiful; alack; alas
sky; the skies; high-altitude sky; upper air
to ask again; to repeat one's question; to ask back; to ask in return; to counter
vague; obscure; indistinct; hazy; ambiguous
to overdo; to do too much
revival; restoration; resuscitation
to fix (a time, date, etc.); to set; to expect; to hope for; to resolve (to do); to decide upon