white ball (baseball, golf ball, etc.)
lightning; electric illumination; light from an electric source
underground space; subterranean space; subterranea
electronic device; electronic equipment; electronics
manufacturing plant; production facility
to understand; to be convinced; to be satisfied
culture fluid; culture solution; broth
to soak (in); to steep; to dip; to pickle; to preserve (in salt, vinegar, etc.)
organic; organic chemistry; organic compound
close thicket; dense forest; jungle; Amazon (online retailer)
space; room; space (between letters, words, etc.); space (piece of type); (outer) space
interior (of building, room, vehicle, etc.); interior design
being done for; giving up; being in a hopeless situation; not knowing what to do; being brought to one's knees; (lit.) throwing up (one's) hands
to one's regret; regrettably; unfortunately; what can be done about ...; ... cannot be helped
machinery; gadgetry; equipment
row; line; group (of peers); ranks (of); sequence; series (taxonomic rank)
profound; deep; grave; solid; dignified; stately
to compete; to contend; to vie; to contest
900; nine hundred; (arch.) fool; (arch.) idiot
to profit; to benefit (from); to benefit (someone or something); to be beneficial to; to make good use of; to take advantage of
clanging; banging; throbbing (headache); pounding; fully; vigorously
mechanism; machinery; system; structure; organization
wide sense (e.g. of a word); broad sense
threshold (amount, dose, etc.)
great difference; big difference; wide margin
to give thought to; to bear in mind; to keep in mind
intricate; elaborate; complicated; complex
to be awash with; to teem with; to be full of
metallic color; metallic colour
diffusion; spread; popularization; promulgation; familiarization
death due to shock (triggered by blood loss, heart failure or other causes)
occurrence; taking place; happening
partial; incomplete; imperfect
feedback (on a product, person's performance, etc.); feedback (in an electronic circuit, biological system, etc.)
dignity; eminent; high ranking; high-order (digit, bit, etc.)
participation; taking part in; participating in; being concerned in