Yes, the word 'truce' is a noun, a singular, common, abstract noun; a word for a temporary cessation to fighting.
Written records of truce violationsAPEX
The Truce was created in 1957.
they made a truce
The Truce has 253 pages.
reactions for truce in the forest
A truce is not a propositional phrase; rather, it is a noun that refers to an agreement between parties to stop fighting or arguing. A propositional phrase, on the other hand, typically consists of a preposition and its object, functioning as a modifier in a sentence. For example, "in the garden" or "with great enthusiasm" are propositional phrases. Thus, a truce is a concept or event, while a propositional phrase serves a grammatical function.
Let's call a truce. This minor incursion shall not damage the truce between our countries.
The modern olympics don't have truce on any way.
The modern Olympics don't have truce on any way.
The modern Olympics don't have truce on any way.
Written records of truce violationsAPEX
The word "truce" is spelt just as you have in the question.