秒

second (unit of time) / arc second (angular measurement unit) / (coll.) instantly

few / less / to lack / to be missing / to stop (doing sth) / seldom

young

cereal / grain

lit. fight minutes, snatch seconds (idiom); a race against time / making every second count

seize every minute and second (idiom); not a minute to lose / every moment counts

millisecond, ms

microsecond, µs, 10^-6 s

to ejaculate within a few seconds during sex

parsec (astronomy)

superglue

nanosecond, ns, 10^-9 s (Tw) / PRC equivalent: 納秒|纳秒[na4 miao3]

all the time

picosecond, ps, 10^-12 s