The phrase "an acquaintance how" is not correct and does not make sense in written English.
It seems to be an incomplete thought or a misphrasing, and it cannot be used in any context as it stands.
Example: "I met an acquaintance how I used to know from college." (This example is still incorrect due to the phrase itself.)
Alternatives: "a person I know" or "someone I am familiar with".
I asked a new acquaintance how he would answer.
Asked by a French acquaintance how far liberty of the press extended in England, he said: "I cannot tell, but I am trying to find out".
TISH JOHNSON traces her secession from the rigors of day-to-day fashion maintenance to an evening at an Upper East Side restaurant, where an acquaintance asked how she was doing.
He tried to dig back in his mind to their old acquaintance: how hadn't he seen that the invisible, unremembered Susan might grow into this slim, long-faced, long-legged dark woman, somewhat ravaged but contained and elegant?
There was a larger question to pose to a group of acquaintances: how would you describe the New Etiquette?
Another analyst and friend posed a question to a number of his acquaintances: "How many transistors have shipped since the first one was devised back in 1947?" I thought this was interesting and put in a few minutes to make a rough guess.
My Money's On Pittsburgh The other day, an acquaintance asked me, "How much is your rent?" It made me feel uncomfortable.
The coming few years would prove how wrong he had been.... When, recently, I have described to acquaintances how 40 years ago a group of white middle-class actors set out on the fringes of Chelsea to play Chinese peasants, they have smiled as though the whole idea were condescending and ridiculous.
"However, if Facebook is used to see how well an acquaintance is doing financially or how happy an old friend is in his relationship - things that cause envy among users - use of the site can lead to feelings of depression".
