subtle; delicate; difficult; complex; doubtful; questionable
ear; hearing; edge; crust; selvedge (non-fray machined edge of fabrics); selvage
difference; distinction; discrepancy; mistake; error
sharp (blade); pointed; sharp (pain); stabbing; perceptive; keen
if; in case; as for; on the topic of; if that's the case; if so
to recognize by sound (recognise); to identify by sound; to understand; to be reasonable
until now; so far; up to the present
sample; example; specimen; display model (e.g. plastic food models used by restaurants)
number one; first; best; most; game; round
to search for; to look for; to hunt for; to search (a house, pocket, etc.); to search through; to rummage in (e.g. a drawer)
if so; in that case; in that situation
perhaps; likely; probably; I dare say
come; come now; well; who knows; well now; let's see
these guys; these fellows
voice; singing (of a bird); chirping (of an insect); voice; opinion (as expressed in words); sound; sense (of something's arrival)
to hear; to listen (e.g. to music); to ask; to enquire; to hear about; to hear of; to follow (advice, order, etc.)
(someone else's) daughter
to laugh; to smile; to sneer; to ridicule; to be dumbfounded; to be flabbergasted