Meanings
nountwenty-niner (plural twenty-niners)
plural twenty-niners · alternative 29er
- A mountain bike with wheels of approximately 29 inches in diameter.
Origin
Cite this entry
APA
twenty-niner. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/twenty-niner
MLA
“twenty-niner.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/twenty-niner. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “twenty-niner,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/twenty-niner.
Source: twenty-niner on Wiktionary, CC BY-SA 4.0.