Herculean task; next-to-impossible undertaking
source (of a river); fountainhead; source; origin; root
to feel around for; to fumble for; to investigate; to probe into; to explore (parts unknown); to enjoy (natural beauty)
to close one's eyes; to lower one's eyelids; to shut one's eyes; to die; to breathe one's last
concentration (on a task); focusing one's attention; concentration (of population, buildings, power, etc.); centralization; within a collection of works
for work; in a manner related to work
by all means; at any cost; whether (one is) willing or not; willingly or unwillingly; on no account; by no means
kind; sort; type; equal; match; peer
sensitive; alert; aware; susceptible
singing voice; (sound of) singing
to some extent; to a certain extent
distance; range; difference (e.g. in opinion); gap; metric
to open; to undo; to bloom; to unfold; to open (for business, e.g. in the morning); to be wide (gap, etc.); to widen
variety; kind; type; counter for kinds, species, etc.
direction; orientation; bearing; course (e.g. of action)
accurate; correct; precise; exact
grasp (of the situation, meaning, etc.); understanding; control; hold; grip
self-confidence; confidence (in oneself)
to knit one's brows (in discomfort, unease, disapproval, etc.); to raise one's eyebrows; to frown
to listen carefully; to strain one's ears
to play an instrument (esp. string instruments); to dance
simple; artless; naive; unsophisticated
tone color; tone colour; tone quality; timbre
skillful; skilful; delicious; tasty; good (deal, idea, etc.); profitable
by any standard; (not) even as flattery
flow (of a fluid or gas); stream; flow (of people, things); passage (of time); course (of events); (step-by-step) procedure; group of people who remain together after the end of an event
awkward; clumsy; stiff; crude; unrefined; constrained
consenting to; agreeing to; understanding; being convinced of; being satisfied
(made of) leather; leather-bound
case (container); case (instance, situation); case
favorite; favourite; habitually used
stock-in-trade; tools of one's trade
publicity; advertisement; advertising; propaganda
circumstances; condition; arranging; managing; lending money; raising money
from the standpoint of; from the viewpoint of; on; above; the best; top
intentionally; deliberately; designedly; especially; particularly
person in the same line of business; people in the same trade; the trade; the profession
tool; implement; means; furniture
always; constantly; at all times; habitually