dummy

Adjective

• having the appearance of being real but lacking capacity to function
  • a dummy corporation
    

Noun

• a cartridge containing an explosive charge but no bullet

• a figure representing the human form

• an ignorant or foolish person

• a person who does not talk

Verb

• make a dummy of
  • dummy up the books that are to be published
    

Related words

• Synonyms: 
  blank , blank shell , dumbbell , dope , boob , booby , pinhead , silent person , dummy up