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"unity" is also used as a crossword clue. If that's what you saw, the answer is often oneness (7 letters).
Definitions
the quality of being united into one
Word origin
From Middle English unite, from Anglo-Norman, Old French unité, from Latin ūnitās, from ūnus (“one”) + noun of state suffix -itās, ultimately from Proto-Indo-European *óynos (“one, single”), hence distantly related to one and an. By surface analysis, unite + -y. Displaced native Old English ānnes (literally “oneness”).
Used in a sentence
“Near-synonyms: unification, unionization, integration”
“Alan Pardew's current squad has been put together with a relatively low budget but the resolve and unity within the team is priceless.”
“the cube roots of unity”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer2 curated clues
01“State of oneness”5 letters
02“Togetherness”5 letters
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