1. quadruplicate

any four copies; any of four things that correspond to one another exactly

Example Sentences:
'it was signed in quadruplicate'

2. quadruplicate

reproduce fourfold

Example Sentences:
'quadruplicate the bill'

3. four-fold, fourfold, quadruple, quadruplex, quadruplicate

having four units or components

Example Sentences:
'quadruple rhythm has four beats per measure'
'quadruplex wire'

Synonyms

• four-fold
• fourfold
• quadruple
• quadruplex