Within DevOps the terms Continuous Integration, Continuous Delivery and Continuous Deployment get thrown around a lot. Here is the simplest definition I could come up with to quickly explain each to a non techie like a project manager.
Continuous Integration | Running unit and other tests on every branch on every commit and merging to master every day |
Continuous Delivery | As above but each commit CAN be pushed to production |
Continuous Deployment | As above but each commit IS pushed to production |