Acknowledge is a synonym of Confess. Confess is a synonym of Own. Own is the opposite of Adopt. 
Finger is related to Long. Long is related to Story. Story is related to Level. 
Acknowledge <--Synonym--> Confess <--Synonym--> Own <--Antonym--> Adopt 
Finger <--RelatedTo--> Long <--RelatedTo--> Story <--RelatedTo--> Level 