Synonyms for Lessen

Synonyms starting with letter O

• obsess
• open the door
• omit
• offing
• offed
• outs
• obstruct
• obscure
• obtund
• 

  overcome
• outed
• oppose
• overlook
• order
• organise
• organize
• offer
• open
• object
• oust
• offset
• obey
• observe
• obfuscate