dim, gloomy

empty, vacant, hollow

packing (in cans), canning, canned goods, tin can

reverse, inversion, upside down

noisy

stripe

pure, true, genuine, unmixed

obedient, meek, docile, unaffected

mutual, reciprocal

brown

direct current

impertinent, saucy, cheeky, conceit, audacious, brazen

while talking, the line is busy

pitch black

rare, seldom

sample

each, individual

wool