Meanings
adjectivetri-annual (not comparable)
- alternativenot comparableAlternative form of triannual.
"I don't think moving to tri-annual timetable changes brings any benefit to the freight sector.
2023 September 6, Anthony Lambert, “Train paths: more space for freight?”, in RAIL, number 991, page 34
Origin
Cite this entry
APA
tri-annual. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/tri-annual
MLA
“tri-annual.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/tri-annual. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “tri-annual,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/tri-annual.
Source: tri-annual on Wiktionary, CC BY-SA 4.0.