Word Pronunciation & Dictionary

lightspeed

Word Rarity Very rare

Frequency: Zipf frequency 2.37 in modern English

Syllables
light-speed
IPA
17
Scrabble Score
10
Letters
2
Syllables
9
Unique Chars

Meaning

noun

The speed of light (in vacuum unless another medium is specified).

Countable; Uncountable

noun

An extremely fast speed.

Colloquial; Countable; Uncountable

Example Sentences

Etymology

From light + speed.

Usage

Inflected Forms

Phrases

Synonyms

Questions

What does lightspeed mean?
The speed of light (in vacuum unless another medium is specified).
Where does lightspeed come from?
From light + speed.

How to pronounce lightspeed

  1. Open the pronunciation page — Open the Speakur entry for “lightspeed”.
  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 “lightspeed”.
  4. Repeat and practice — Say “lightspeed” aloud, matching stress and vowels until it feels natural.