callid /kalˈid/ (rare)

Shrewd

• operating tables
• operating theatre
• operating theatres
• operation
• operational
• operational amplifier
• operational amplifiers
• operationalism
• operationalist
• operationalists
• operationally
• operational research
• operationism
• operationist
• operationists
• operations
• operations research
• operative
• operatively
• operativeness
• operativenesses
• operatives
• operative words
• operator
• operators