Now there was a time when Federer might have acknowledged the crowd with a fist pump and a smile and moved on to the next point.
Administration officials also acknowledged that they will need congressional support to implement their aid plan for Egypt.
The sordid details of their acknowledged sexual encounter were the stuff of tabloid frenzy from the moment the story broke.
1550s, a blend of Middle English aknow (from Old English oncnawan "understand," from on + cnawan "recognize;" see know) and Middle English knowlechen "admit, acknowledge" (c.1200; see knowledge). In the merger, a parasitic -c- slipped in, so that while the kn- became a simple "n" sound (as in know), the -c- stepped up to preserve, in this word, the ancient "kn-" sound. Related: Acknowledged; acknowledging.