The phrase "acknowledgment day" is correct and usable in written English.
It can be used to refer to a specific day designated for recognizing or celebrating achievements, contributions, or events.
Example: "We will celebrate acknowledgment day next week to honor all the volunteers who have contributed to our cause."
Alternatives: "recognition day" or "appreciation day".
Ms. Warren's acknowledgment Wednesday night that she had told her employers that she was of American Indian descent has not quelled the matter in the increasingly volatile Senate race in Massachusetts.
MIXED REACTION ON PLAYOFFS Commissioner Bud Selig's acknowledgment Thursday that the playoffs would almost certainly expand next season from 8 teams to 10 drew a mixed reaction in the Yankees' clubhouse, with players generally favoring the addition of an extra wild-card spot in each league while wondering how the new format would look.
Pakistanis also welcomed Obama's acknowledgment Thursday that drone strikes have caused civilian deaths.
George W. Bush's casual acknowledgment Wednesday that he had Khalid Sheikh Mohammed waterboarded -- and would do it again -- has horrified some former military and intelligence officials who argue that the former president doesn't seem to understand the gravity of what he is admitting.
He repeatedly said that though the disease had been diagnosed in former players, it also has been found in "all spectrums of life". Chris Nowinski, executive director of the Concussion Legacy Foundation and a former Harvard football player, said Miller's acknowledgment Monday was a milestone moment.
Even before the White House's acknowledgment on Friday, it was becoming clear how much the nomination was in jeopardy.
COLUMBIA, S.C. — Newt Gingrich poked fun at Mitt Romney's acknowledgment on Tuesday that he paid about a 15 percent tax rate because his income was largely returns on investments.
That's why two countries included in Facebook's acknowledgment on Wednesday are likely to cause the social media company a particular headache: Britain and Germany.
Mr. Sudeikis did not appear to get any special acknowledgment on Saturday's broadcast, but given his recurring roles as Vice President Joseph Biden and Mitt Romney, the presumptive Republican presidential nominee, "S.N.L".
Separately, Vatican officials declined to comment on the acknowledgment on Sunday by Cardinal Keith O'Brien, the most senior Roman Catholic cleric in Britain and a vehement condemner of homosexuality, that he had engaged in inappropriate sexual conduct.
