The phrase "a unity between" is correct and usable in written English.
It can be used to describe a harmonious relationship or connection between two or more entities, concepts, or groups.
Example: "The project aims to create a unity between the different departments to enhance collaboration and efficiency."
Alternatives: "a connection between" or "a bond between".
(With Chaplin, there's a unity between source and technique — which isn't necessarily preferable).
Understanding, therefore, accomplishes a unity between the knowing object and the object known.
"Citizen Kane," however, employs the simplification, so convenient to melodrama, that there is a unity between a man's private life and his public one.
So there is a spiritual gulf, not a unity, between the fragile serenity of the close of the adagio and the gripping certainties of the Te Deum, and Bruckner probably knew it.
(music, or words first?) He showed us that question in itself is false: in his interpretations, he created a unity between text and music unlike few before or after him.
Chief Justice John Roberts observed that no dictionary "prior to about a dozen years ago" would have described marriage as anything but a "unity between a man and a woman".
Olympic dressage involves "an intimate unity between a human and a non-human" and is scored by a subjective judging process, under the auspices of the Fédération Equestre Internationale whose Code of Conduct declares the welfare of the horse as paramount.
The legislators were meeting in Djibouti, just north of Somalia, under a United Nations-brokered deal to establish a unity government between the transitional government and moderate Islamists.
While I was in Gaza, in July, there were talks under way in Cairo to explore the creation of a unity government between Hamas and Fatah, and to make a deal for Gilad Shalit.
Netanyahu's comments followed Wednesday's announcement of a unity agreement between Abbas' Fatah movement – the dominant group in the PLO and which governs parts of the West Bank – and Hamas, which controls the Gaza Strip.
In the past week, it brokered a unity deal between Fatah and Hamas, the rival Palestinian movements, and, as my colleague Alissa J. Rubin wrote from Kabul, it is said to be hosting meetings between U.S. and Taliban officials.
