difficult to ...; hard to ...
odour; odor; scent; aura; whiff; smacks of ...
telephone call; speaking over the telephone; (Internet) voice call; counter for telephone calls of a set duration
complexion; one's colour; one's color; countenance; expression; one's face
to become better; to improve
quick; swift; nimble; quick (understanding, judgement, etc.); alert; prompt
how long; how far; how much
anyhow; in any case; at any rate; at best; at most
idea; notion; sense (e.g. of duty); resignation; preparedness; observation and contemplation
careful; cautious; prudent; discreet; deliberate
to express in a refined fashion; to weave a web of words
egregious; outrageous; too much; over the top
number of events (e.g. accidents, crimes, meetings, housing starts, hits on a web page)
shuddering; shivering; trembling; being horrified; being disgusted
insane; crazy; nuts; out of one's mind
to cross one's mind; to occur to one; to flash into one's head
to choke; to have trouble breathing
stiffening; rigidity; rigor; stiffness; ossification; petrification
chill; the shivers; shivering fit; cold; coldness; cold air
to rush on; to attack; to swoop down on
convulsion; cramp; spasm; tic; twitch; fit
cold (e.g. weather); uninteresting (esp. joke); lame; dull
to have (urgent) business; to have something one needs to attend to; to have something one wants to say (to someone)
to come out all right; to take care of itself; to be OK
to be filled with strength; to be filled with effort; to be enthusiastic about; to be tired (ironic)
in a daze; absent-mindedly; dimly; hazily; with a roar (of flames); with a whoosh
to put to bed; to lay down lengthwise; to put a thing on its side; to set something aside unused; to let lie idle; to ferment
unnecessary; not needed; not necessary
nap; short sleep; first sleep of silkworms
drastic treatment; rough-and-ready treatment; drastic remedy; drastic measures; drastic steps
hesitation; bewilderment; illusion; delusion; inability to reach enlightenment
exactly!; surely!; that's it!; ding dong (sound of door bell, chime, etc.)
chime; bell (e.g. doorbell)
entrance; front door; entryway; entranceway; entry hall; vestibule
to run off; to break into a run; to start running
forbidding to speak; muzzling (a person); bribing into secrecy; hush money
to conceal; to keep secret; to cover up
precondition; prerequisite
certainly; for sure; distinctly; clearly; firmly; tightly
dizziness; giddiness; vertigo
to bend oneself forward (esp. in curiosity or excitement); to hang out (e.g. over a balcony)
to set out; to set sail; to embark on (a new venture); to set out (to achieve something); to begin to ride; to lean forward
to put back up; to stand back up; to restore (to former strength); to revive (e.g. the economy); to make again (a plan, policy, etc.); to reformulate