millisecond

[mil-uh-sek-uhnd] / ˈmɪl əˌsɛk ənd /

NOUN

split second

Synonyms

STRONGEST

blink of an eye nanosecond

WEAK

bat of an eye flash fraction of a second half a second heartbeat instant jiffy microsecond moment nothing flat twinkling

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“As a user,” Krug argues, “I should never have to devote a millisecond of thought to whether things are clickable—or not.”

From Slate • Apr. 4, 2026

A millisecond after the doors closed, my friend said, “I think I’m going to call him.”

From Los Angeles Times • Feb. 27, 2026

A millisecond used to be a big deal for the world’s quickest traders.

From The Wall Street Journal • Dec. 16, 2025

But, this millisecond pulsar theory is imperfect, the researchers said.

From Science Daily • Oct. 18, 2025

Chris asked about a millisecond before stuffing almost half of his sandwich in his mouth.

From "The Boy in the Black Suit" by Jason Reynolds