someone who has a lot of influence in starting something important.

He was a prime mover in developing a new style of customer-friendly bookshops in the UK.

• Chin up!
• chip in
• chip in something
• chip off the old block
• chip on shoulder
• chip on your shoulder
• chocolate box
• choke off
• choke off something
• choke up
• choke you up
• chop and change
• Chop chop!
• chosen few
• chunk of change
• churn out
• churn something out
• circle the wagons
• claim to fame
• clamp down on
• clamp down on something
• clam up
• clapped-out
• clarion call
• claw way