She 'is' widely/generally 'acknowledged' as one of the world's best chefs. [=many people regard her as one of the world's best chefs]
He refuses to 'acknowledge' the authority of the court. [=he denies that the court has authority]
The players 'acknowledged' their fans by waving their hands and blowing kisses into the crowd.
(..) No calling you "dad." - No expectations. - No BS. - Drink? Eighteen? - Scotch. Neat. I just want to acknowledge there are a lot of emotions fiowing right now. You two are probably feeling a strong impulse... to sleep with each other... and hey, that's normal. (..)2013 TvShow: Community Title: Cooperative Escapism in Familial Relations Season: 4 Episode 5