Word.ws English Dictionary

A4

A4 proper noun: a4 class, a class of steam locomotive used on the London and North Eastern Railway.

Proper noun

A4

  1. (UK) A4 class, a class of steam locomotive used on the London and North Eastern Railway.
    • In a letter to the author he says that when he went to King's Cross in 1936 the A4s were, and had been for some time, at a low ebb in performance.1990, H.C.B. Rogers, Express Steam Locomotive Development in Great Britain and France, Crecy Publishing, →ISBN, page 89

Questions about A4

What does A4 mean?
A4 means a4 class, a class of steam locomotive used on the London and North Eastern Railway.
What part of speech is A4?
A4 is a proper noun.

Words near A4 in the dictionary

  1. A2Ss
  2. A3
  3. A3C
  4. A3Cs
  5. A3s
  6. A4
  7. A415
  8. A440
  9. A7V
  10. A7X
  11. A8

Source and license

Adapted from Wiktionary: A4 (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “A4.” Word.ws, https://word.ws/a4. Based on Wiktionary, CC BY-SA 4.0.