voice; speech; phone (as opposed to a phoneme); speech sound; audio; sound (as opposed to the picture)
resolution (of a display, printer, scanner, etc.); degree of understanding; how well one understands a person or thing
1,000,000; one million; million; many
highly directional microphone
internal (e.g. mechanism, feature); built-in; equipped (with)
connection; attachment; changing trains; conjunction
surveillance camera; security camera
yen (currency of Japan); circle
handy; convenient; suitable; reasonable; moderate
wired; cabled; communication by wire
to be caught in; to be stuck in; to stop by; to drop in for a short visit; to get mixed up in (trouble); to get entangled in (a problem); to fall for (a trick)
desktop (computer); home (game console, CD player, etc.); non-portable; stationary
round; spherical; circular
(television, radio, etc.) receiver
by means of; due to; because of; according to
biggest; greatest; largest; maximum
correspondence; communication; transmission; news; signal; telecommunications
criterion; standard; yardstick; rough estimate; approximation
infrared rays; infrared radiation
light-emitting diode; LED
loading (on a ship); equipping (an aircraft, car, etc.) with; being equipped with
dark place; unlit spot; darkness
short distance; close range
stone wall; dry wall; rocky cliff; stone precipice
thick; deep; kind; cordial; abundant
at the window; by the window; next to the window
two-way; bidirectional; interactive
one side; one party; the other side; one (of a pair); the other (one); the mate
number of large objects such as cars, computers, etc.
function; facility; faculty; feature
futility; waste; uselessness; pointlessness; idleness
recommendation; advice; suggestion; encouragement