occasionally; once in a while; seldom; casually; unexpectedly; accidentally
adultery; immorality; impropriety; (an) affair
to (happen to) see; to notice; to catch sight of
interval; break; pause; spare moment
photograph; photo; picture; moving picture; movie
to send (something unsolicited); to send without the receiver's request
offline meeting (face-to-face meeting by people who normally interact online)
to disappear into; to slip into; to be lost in; to be mixed up with
sleeping pill; sleep medication
to sleep; to die; to rest (in peace); to lie idle (e.g. of resources); to lie unused; (arch.) to close one's eyes
least; lowest; worst; awful; horrible; at the very least
sensitivity; sensitiveness; sense (of ...)
to approach; to draw near; to get close; to get acquainted with; to get closer to; to get to know
no good; not serving its purpose; hopeless; wasted; cannot; must not
whole life; a lifetime; all through life; (the only, the greatest, etc.) of one's life
to arrive at (after a struggle); to finally reach; to find one's way to; to finally hit on (e.g. an idea)
may; might; perhaps; may be; possibly
presence (impressive quality)
to become public; to become known; to come out in the open; to be formal; to be official
presence of other people; (in) public; (in) front of others
for the first time; only after ... is it ...; only when ... do you ...; first time; (one's) first
to meet; to encounter; to see; to have an accident; to have a bad experience
junior high school; middle school; lower secondary school
living thing; organism; creature; biology
department (in an organization); division; club; part; component; category
together; at the same time; same; identical
natural; right; proper; naturally; as a matter of course; rightly
person of lofty virtue; man of noble character; perfect person; saint
doctrine; rule; principle; -ism
confrontation; opposition; antagonism
structure; construction; makeup; framework; organization; pattern
identical; same; one and the same; fair; equal treatment; without discrimination
to the end; to the bitter end; to the last; after all; it must be remembered; only
simple; plain; uncomplicated; straightforward; simple-minded; naive