Standard Lemma guide

airspeed

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: EH1 R S P IY2 D Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

The speed of an aircraft relative to the air through which it is flying.

Definition source: English Wiktionary via Wiktextract

Topics: aeronautics, aerospace, aviation, business, engineering, natural-sciences, physical-sciences

Examples

  • Holonym: air data

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

the speed of an aircraft relative to the air in which it is flying

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: speed, velocity

History

Etymology

From air + speed.

Real reading context

airspeed in complete knowledge articles