logo; Logo (programming language)
pulsation; pulsatory motion
back; reverse; rear side; height; stature; ridge (of a mountain)
scenery; scene; landscape
black; black go stone; guilt; guilty person
hard; tough; hardware; hard disk
degree; amount; grade; standard; of the order of (following a number); about
hard-core (music, porn, etc.); hardcore; hard core (fruit, etc.)
up to now; so far; traditional; conventional; usual
stereo (sound); stereo (player, set); stereo; stereophonic
directionality; directivity
audio; audio equipment (esp. high-end)
(practical) experience; personal experience; hands-on experience; first-hand experience
elevation; rise; improvement; advancement; progress
device; equipment; machinery; apparatus
recommendation; endorsement
field of vision; view; one's outlook (e.g. on life); one's horizons
shadow; silhouette; reflection; image; ominous sign; light (stars, moon)
change; variation; variety; diversity; inflection; declension
unlimited; unrestricted; limitless
resolution (of a display, printer, scanner, etc.)
light; well-lit; bright (of a colour); brightly-coloured; cheerful; bright; encouraging (for the future of a project, etc.)
semi-transparent; translucent
back; rear; background; behind the scenes
performance (e.g. music, dance, pantomime, etc.)
serious; important; significant; grave; weighty
many; much; majority (of); greater part (of); mostly; mainly
image quality (film, video, etc.)
compatibility; coexistence; standing together
expression; presentation; representation; notation
to abate; to decrease; to diminish; to shorten
various; varied; diverse; all sorts of