We found 17 dictionaries that define the word signaller:

General (12 matching dictionaries)

1. signaller: Longman Dictionary of Contemporary English
2. signaller: Merriam-Webster
3. signaller: Collins English Dictionary
4. signaller: Vocabulary.com
5. Signaller, signaller: Wordnik
6. signaller: Wiktionary
7. signaller: Dictionary.com
8. Signaller: Wikipedia, the Free Encyclopedia
9. signaller: Rhymezone
10. signaller: FreeDictionary.org
11. signaller: Mnemonic Dictionary
12. signaller: TheFreeDictionary.com

Business (2 matching dictionaries)

13. signaller: Legal dictionary
14. signaller: Financial dictionary

Computing (1 matching dictionary)

15. signaller: Encyclopedia

Medicine (1 matching dictionary)

16. signaller: Medical dictionary

Miscellaneous (1 matching dictionary)

17. signaller: Idioms

(Note: See signal as well.)

Definitions from Wiktionary (signaller) ▸ noun:  (British spelling) One who signals. ▸ noun:  (rail transport) synonym of signalman Similar: signalist, signalperson, signalee, handsignalman, signalman, hand signalman, signholder, flagger, virtue signaler, signer, more... Opposite: receiver, recipient, addressee ▸ Words similar to signaller ▸ Usage examples for signaller ▸ Idioms related to signaller ▸ Wikipedia articles (New!) ▸ Popular adjectives describing signaller ▸ Words that often appear near signaller ▸ Rhymes of signaller ▸ Invented words related to signaller