to begin to strike; to kick out; to forcefully expel; to hammer (pattern, etc.) into metal
absorption; suction; attraction
radio (communication); wireless; not using wires
of no use; useless; not fit for purpose
(United States of) America; United States; US; America (land mass); the Americas
international; diplomatic intercourse
learned society; scientific society; academy; academic meeting; academic conference
attendance; presence; appearance
in order to do; for the purpose of doing; must; should
airplane; aeroplane; plane; aircraft
departure; leaving; setting off
minute (unit of time); fun (one tenth of a monme, 5.787 grains)
thesis; essay; treatise; paper; article
falling into a doze; dozing off; nodding off
to start; to begin; to challenge; to pick (a fight); to set (traps); to plant (explosives)
cockpit; control cabin; flight compartment; pilot compartment; control room
centre; center; center fielder
stoppage; interruption; cessation; suspension
equipment; device; installation; stage setting
invalid; void; ineffective; unavailable
around the world; throughout the world
chaos; turmoil; pandemonium; havoc
to get up; to rise; to wake up; to be awake; to occur (usu. of unfavourable incidents); to happen
(in) the air; midair; sky
minor collision; (have) a scrape (with another vehicle); fender bender
runway; airstrip; landing strip; flight strip
-itis (indicating an inflammatory disease)