September 28
Why this day? Tri is a short form of Trinidad, and shares its name day.
Tri is celebrated in Spain and Argentina on September 28; the United States on November 25.
Tri is a short form of Trinidad. It keeps its origin (Latin) and meaning — christian doctrine of the Trinity, and shares its name day, September 28.
On birth records, Tri is rarely written as such: the Tris are Trinidads (39,027 births). For the name's history, year-by-year popularity and famous bearers, read the Trinidad page. Tri is also a short form of Demetrio, Triana, Katrina.
Tri is a short form of Trinidad, which means christian doctrine of the Trinity.
September 28, together with Trinidad: a short form shares the name day of the name it comes from.
It is a familiar short form. It does not appear as such in birth records, where you find Trinidad.
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