trino
triune
adjective TREE-noh Rare
Origin: From Latin trinus (threefold), from tres (three).
Also means
triple
Usage Note
Trino is primarily a theological adjective — el Dios trino (the triune God, i.e. the Trinity) — and is rarely used outside religious contexts. As a noun trino also means a bird's trill or a musical trill (trino in music notation), making it a homonym with two distinct uses.
Examples
"El Dios trino es central en el catolicismo."
Natural Translation
The triune God is central in Catholicism.

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