something thrown in (with a purchase); something extra; (giving a) discount; price reduction; addition; embellishment (e.g. to a story)
service; help; discount; discounted item; free service; freebie; service
small quarrel; dispute; run-in; issue; trouble
some; any; in any way; of some kind; of some sort
ordinary clothes (i.e. non-uniform); plain clothes; civilian clothes; plainclothes police officer
to (see and) choose; to select; to diagnose (as); to judge; to estimate; to liken (to)
to go by; to go past; to run (between; of a rail service, bus route, etc.); to operate (between); to go indoors; to go into a room; to penetrate
to be surprised; to be bewildered; to be confused; to be flustered; to roll one's eyes up and down
in addition; furthermore; above (which); on top of (which)
(one's) inner voice; voice of one's heart; what one really thinks
self-control; self-restraint
beat; palpitation; pulsation; throbbing
proof; testimony; demonstration; verification; certification
collapse; crumbling; breaking down; (radioactive) decay; disintegration
to try (out); to have a try (at); to test; to put to the test
medicine; pharmaceuticals; efficacious chemical (gunpowder, pesticide, etc.); (pottery) glaze; (illegal) drug; narcotic
lowish; somewhat low; on the low side; low (ball)
oscillation; vibration; swing (e.g. of a pendulum)
to peek (through a keyhole, gap, etc.); to look down into (a ravine, etc.); to peek into (a shop, bookstore, etc.); to sneak a look at; to take a quick look at; to peep (through a telescope, microscope, etc.); to stick out (a scarf from a collar, etc.)
deep down; special place in one's heart; in the back of one's mind
to aggravate; to complicate; to make worse
natural; understandable; reasonable; no wonder
a matter of course; what is to be expected; par for the course
age difference; disparity in age; age gap
evaluation meeting; postmortem session; review meeting
two people alike; two of a kind; kissing cousins; two people cut from the same cloth
being together; going together; matching (clothing); going together
gravity; gravitation; gravitational pull
deep (colour); dark; strong (flavour, smell, etc.); thick (consistency); dense; strong (possibility, etc.)
to pile up; to heap up; to stack up; to repeat many times over; to go through repeatedly; to accumulate
even; (if) only; just; besides; on top of that
foul; breaking the rules; violation (of the law, regulations, etc.); infringement; breach
one side; one party; the other side; one (of a pair); the other (one); the mate
(one's) countenance; face
well, ...; right, ...; so; then; that way (would mean ...); if that is the case
slipping out (a chuckle, giggle); unintentionally (letting out a quiet laugh)
(sound of) laughter; laughing voice
to dive (into or under water); to get under; to get into; to hide oneself (esp. from the government); to conceal oneself
small; fine; detailed; stingy
yellow; high-pitched (voice); shrill
paving (a road); surfacing (with asphalt, concrete, etc.); pavement