feel uneasy; on tenterhooks; in suspense; on pins and needles
vague; obscure; indistinct; hazy; ambiguous
exploitation; bleeding dry; squeezing dry; milking (e.g. a cow's teat); extracting (a liquid) through squeezing
diffusion; spread; popularization; promulgation; familiarization
to displease; to offend; to hurt (a person's) feelings
for heaven's sake (Pete's, mercy's, etc.); for pity's sake; oh stop; lay off
degeneracy; degeneration; degradation (CPU, memory, etc.)
balanced contraction; diminishing equilibrium; reductive balance
frontier (esp. the American frontier); frontier (of a field); forefront (of science, technology)
in all ages; over the ages; forever and ever
rough deposits; rough surface; roughness
to fret (esp. of a young child); to be fretful; to be peevish
(high) mountain; Mount; Mt.; mountain peak
near miss; just missing (each other)
model (e.g. of a vehicle); type
drone; unmanned aircraft; drone
to interfere (with); to hinder; to be hindered (from doing); to become impeded; to have difficulty; to suffer inconvenience
cigar case; cigarette case
very thin; flimsy; cheap; shallow
arranging in a line; standing in a row; parallel (electronics, computing, etc.)
to break into song; to burst into song; to begin singing
dress; attire; clothing; getup; outfit; personal appearance
to speak with restraint; to understate; to downplay; to put it mildly; to say the least
private; non-public; secret; closed-door; closed
degree of penetration; penetrance
to leave nothing undone; to do all in one's might; to do everything possible
(hard) candy; toffee; rice-sugar; sugar made from the starch of rice, potatoes, etc.; amber; yellowish-brown
paying one's own expenses; going into business for oneself; working independently; person who earns their own living
bribery scandal; graft case