Ring can be used for Engage. Ring is related to Propose. Propose is a synonym of Advise. Advise is related to Suggestion. 
Heavy is related to Hard. Hard is a synonym of Tight. Tight is the opposite of Lose. 
Engage <--UsedFor-- Ring <--RelatedTo--> Propose <--Synonym--> Advise <--RelatedTo--> Suggestion 
Heavy <--RelatedTo--> Hard <--Synonym--> Tight <--Antonym--> Lose 