compliant - Being willing to do what one is asked to do, following set of rules, regulations, and standards.
commiserate - To feel or express sympathy towards someone.
contender - A person or group competing with others trying to achieve the same goal.
conflagration - a large fire that causes a lot of damage; or a large and violent event.
comeback - A situation in which someone or something becomes popular, famous, or successful again after a period of being much less popular,
conformist - A person who behaves in accordance with prevailing standards or customs, rather than doing things that are different or original.
collaborate - To work together with someone else for a special purpose, such as to create something.
confess - To admit that you have done something wrong.
contemplate - To spend time considering a possible future action, or to consider one particular thing for a long time in a serious and quiet way.
comprehend - To understand something completely
conceal - To keep something secret, and prevent it from being known or noticed.
comprehensive - Complete; including all or nearly all elements or aspects of something.