Dictionary and Thesaurus

Definition of Dummy Up

• (verb) refuse to talk or stop talking; fall silent; "The children shut up when their father approached"
• (verb) make a dummy of; "dummy up the books that are to be published"

Synonyms of Dummy Up

• Dummy
• Close Up
• Clam Up
• Shut Up
• Belt Up
• Button Up
• Be Quiet
• Keep Mum

Antonyms of Dummy Up

• Open Up

Homophones of Dummy Up