Nanosecond [noun]

● Flash

● Heartbeat

● Instant

● Jiffy

● Moment

● Twinkling

● Millisecond

● Blink of an eye

● Bat of an eye

● Fraction of a second

● Half a second

● Microsecond

● Nothing flat

● Nanosecond

● Millisecond

● Microsecond

● Picosecond

● Thousandth

● Femtosecond

● Attosecond

● Msec

● Trillionth

● Quadrillionth

● Picometer

● Angstrom

● Micrometer

● Wavelength

● Arcsecond

● Gigahertz

● Photon

● Kilohertz

● Millimeter

● Excitation

● Micrometres

● Time

● Milliwatt

● Blink

● Eyeblink

● Millionths

● Twitch

● Radians

● Megaflops

● Lightspeed

● Giga

● Joules

● Eons

● Disintegrations

● Moment

● Dephasing

● Bytes

● Eternity

● Aeons

● Grond

● Milli

● Electric dipole

● Seconds

● Pulser

● Femtometer

● Brainpan

● Cycles

● Subatomic particle

● Instants

● Terawatt

● Yutz

● Amplitudes

● Monosyllable

● Flashbulb

● Infinities

● Nanometre

● Antineutrinos

● Nanometer

● Stopwatch

● Particle beam

● Neutrons

● Gluon

● Heartbeat

● Obliquity

● Zipless

● Toroid

● Atom

● Utterance

● Oscillations

● Flash

● Antiproton

● Doppler effect

● Nanometers

● Lickety split

● Millivolts

● Celestial mechanics

● Wink

● Parsecs

● Whatchamacallit

● Hyperfine

● Bloviation

● Ticktock

● Electron volt

● Fission

● Newtonian mechanics

● Recursion

● Presto

● Metric linear unit

● Logarithms

● Electrons

● Supernova

● Scalar

● Baryon

● Muon

● Infinitive

● Angular momentum

● Chronos

● Quadratic equation

● Kelvin

● Pythiad