The phrase "acknowledgment that thousands of" is correct and usable in written English.
It can be used when discussing recognition or acceptance of a fact or situation involving a large number of individuals or items.
Example: "The acknowledgment that thousands of people are affected by this issue is crucial for understanding its impact."
Alternatives: "recognition that thousands of" or "acceptance that thousands of".
They avoided television as an acknowledgment that millions of Americans were uncomfortable with seeing ads for so-called hard liquor on TV although stations and networks have long carried spots for other types of alcoholic beverages like beer and wine.
The mayor's announcement was an acknowledgment that despite the hundreds of millions of dollars devoted to fixing the problems in recent years, the jail cannot be saved.
It was an acknowledgment that the 11th hour lineup change likely miffed thousands who had anticipated the return of the reclusive Ocean -- and dropped upward of $175 for a ticket to the two-day festival at L.A. Memorial Sports Arena and Exposition Park.
"If necessary, exclusively"—in one sense, that is an appealingly modest sentiment, an acknowledgment that his two-and-a-half-year Presidency would never make it to the top ranks of one of those historians' polls.
Absent from his remarks was any acknowledgment that the effects of hardline policing can be devastating.
They insist that a public acknowledgment of that past would help put the issue to rest.
Mr. Carey's middle name, Polk, is an acknowledgment that he was a descendant of the 11th president of the United States, James K. Polk.
The exhibition was inspired in part by a lack of visual acknowledgment of that experience.
And sometimes the acknowledgment of that impossibility reveals the real imaginative power of cinema.
In an acknowledgment of past mistakes, administration officials have emphasized that for the first time, U.S. and NATO forces are outnumbered by thousands of Afghan soldiers fighting alongside them.
