Word Pronunciation & Dictionary

attosecond

Word Rarity Very rare

Frequency: Zipf frequency 1.48 in modern English

Syllables
at-tosec-ond
IPA
13
Scrabble Score
10
Letters
3
Syllables
8
Unique Chars

Meaning

noun

An SI unit of time equal to 10⁻¹⁸ seconds. Symbol: as

Example Sentences

Etymology

From atto- + second.

Inflected Forms

Frequently Paired Words

mul:as

Questions

What does attosecond mean?
An SI unit of time equal to 10⁻¹⁸ seconds. Symbol: as
Where does attosecond come from?
From atto- + second.

How to pronounce attosecond

  1. Open the pronunciation page — Open the Speakur entry for “attosecond”.
  2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
  3. Play the audio — Click Play to hear reference audio for “attosecond”.
  4. Repeat and practice — Say “attosecond” aloud, matching stress and vowels until it feels natural.