connumerate /kə-nūˈmə-rāt/

To count together

connumerāˈtion noun

• operants
• operas
• opera seria
• opera singer
• opera singers
• operate
• operated
• operates
• operatic
• operatically
• operating
• operating room
• operating rooms
• operating system
• operating systems
• operating table
• operating tables
• operating theatre
• operating theatres
• operation
• operational
• operational amplifier
• operational amplifiers
• operationalism
• operationalist