The phrase "acquaintance understands" is correct and usable in written English.
It can be used when discussing the level of understanding or familiarity someone has with a person or situation.
Example: "My acquaintance understands the complexities of the project better than I do."
Alternatives: "familiarity comprehends" or "associate grasps".
Elementarism has sometimes been defended by appealing to something like Russell's principle of acquaintance, understood as the tenet that only things with which we are acquainted should be thought to exist, together with the claim that we are acquainted with first-order properties but not with those of any higher orders.
He's also helping unemployed and underemployed friends and acquaintances understand the power and the challenge behind the concept.
Let us use the label "acquaintance theory" broadly to stand for any view, in the philosophy of mind or epistemology, in which acquaintance so understood plays a central role.
Still, one philosopher's conceptual atom is another's complete mystery, and unless one can convince oneself that one understands what acquaintance is, one will not be able to understand views that invoke it.
They had been introduced by a mutual acquaintance; as Cilins understood it, Fox was working on behalf of a client who wanted to know how B.S.G.R. had secured the Simandou deal.
Uninflected, flat and shadowless, it's meant to communicate, one understands from an acquaintance with California novels by the likes of Joan Didion, James Ellroy and Bret Easton Ellis, among others, the dehydrated, present-tense barrenness of life in a city of brutal superficiality.
His father wrote one of his staff members about how warm that made him and Barbara feel: "We wiped back our tears and we said, 'We are very lucky to have a boy today who understands.' " Some acquaintances believe that Mr. Bush's political career arose from a desire to avenge his father's defeat, although Mr. Bush dismisses the idea.
Even then the police were slow to act and acquaintances slow to understand ("Well, James, you were the most beautiful child," one family friend said).
Acquaintances didn't understand the friendship because Shame seemed so weak and pathetic, while Anger, though aggressive and unpleasant, enjoyed a reputation for toughness, grittiness and a refusal to accept life's unfair lessons.
It seems that we ought, instead, to take them as claiming that they simply do not understand what acquaintance is, or what the acquaintance theorist means by 'acquaintance,' even after attempting to follow the acquaintance theorist's attempts to lead us to grasp or understand it.
