4
split second(noun, expression, idiom, time)
3
flash(noun, moment, instant, millisecond)
3
jiffy(noun, moment, instant, millisecond)
3
microsecond(noun, moment, instant, millisecond)
3
minute
3
moment(noun, instant, millisecond)
3
second
3
twinkling(noun, moment, instant, millisecond)
2
heartbeat(noun, moment, instant, millisecond)
2
nsec
2
shake
2
short time
2
time-interval
2
trice
2
twinkle
2
wink
1
bat of an eye(noun, expression, idiom, moment, instant)
1
beat
1
blink of an eye(noun, expression, idiom, moment, instant)
1
eyeblink
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APASmart Define. (2015). nanosecond thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/nanosecond/thesaurus/synonyms
ChicagoSmart Define. 2015. "nanosecond thesaurus" https://smartdefine.org/nanosecond/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, nanosecond thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/nanosecond/thesaurus/synonyms>.
MLASmart Define. "nanosecond thesaurus" 19 May 2015. Web. 20 September 2026. <https://smartdefine.org/nanosecond/thesaurus/synonyms>