Meanings
nountrainiac (plural trainiacs)
plural trainiacs
- informalA railway enthusiast.
Sheldon Cooper: It's official. I'm an HO trainiac.
2011 September 29, “The Pulled Groin Extrapolation” (00:10:27-00:10:32 from the start), in The Big Bang Theory, season 5, episode 3, Chuck Lorre, Eric Kaplan, and Jim Reynolds (actors)2 more examples
The Lomita Railroad Museum was once a regular stop on our shopping trips, a little reward for my trainiac.
2001, Kathie Weir, A Parent's Guide to Los Angeles: Friendly Advice for Touring Los Angeles with Children, Mars Publishing, Inc., →ISBN, page 29There are still trainiacs, for sure — approximately 300,000 hardcore train hobbyists in the United States, who spend about $500 million on their passion.
2006, James B. Twitchell, Where Men Hide, Columbia University Press, →ISBN, page 77
Synonyms & antonyms
Origin
- Proto-Indo-European*dʰregʰ-der.?
- Latintrahere
- Vulgar Latin*tragīnāre
- Old Frenchtraïner
- Old Frenchtrain
- Middle Englishtrayne
- Englishtrain
- Proto-Indo-European*men-
- Proto-Indo-European*mn̥yétor
- Proto-Hellenic*məňňómai
- Ancient Greekμαίνομαι (maínomai)
- Ancient Greekμᾰνῐ́ᾱ (mănĭ́ā)
- Ancient Greekμανιακός (maniakós)
- Late Latinmaniacu
- Frenchmaniaque
- Englishmaniac
- Englishtrainiac
Rhymes & wordplay
Anagrams
Cite this entry
APA
trainiac. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/trainiac
MLA
“trainiac.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/trainiac. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “trainiac,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/trainiac.
Source: trainiac on Wiktionary, CC BY-SA 4.0.