second (1/60 minute)
秒 centers on a tiny unit of time: the second, as a precise 1/60th of a minute. The idea is a very small, fine-grained measurement.
秒 combines 禾 (grain) with 少 (few/little), suggesting the tiny awn or tip of a grain, which came to mean a very small unit of time.
The left side 禾 is a grain plant, and the right side 少 means 'few' or 'little'. Picture a tiny grain of rice falling, marking just one second—a very small unit of time.
For ビョウ, imagine a tiny grain of rice falling every second, and you say 'byou' as it drops—like the English word 'by' stretched into 'byou'.
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second (unit of time)
speed per second; velocity per second
countdown
every second
second hand (of clock)
three-second rule (food hygiene myth)
five-second rule (food hygiene myth)
split second; instant
zeptosecond
nanosecond; billionth of a second; ns
picosecond
femtosecond
femtosecond chemistry; femtochemistry
microsecond
millisecond
watt-second
one second
moment
to have no time to lose; to fight with every minute and every second
decays per second; disintegrations per second; dps