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comma a punctuation mark (,). It is used to separate words, phrases, or other parts of a sentence or list, or to show a pause in speech. It is also used when writing numbers of one thousand or greater to mark off groups of three digits.
command to order or instruct. [7 definitions]
commander a person who leads and controls. [3 definitions]
commandment an order or law. [2 definitions]
commemorate to honor the memory of.
commence to begin or start.
commencement the day or ceremony of graduation from a school or college. [2 definitions]
commend to speak of with praise for some act or service.
comment a written or spoken statement of opinion. [2 definitions]
commentator a person who comments on something. Commentators often appear on radio or television shows to give opinions or explanations of news and events.
commerce the buying and selling of goods or services; trade; business.
commercial having to do with trade or business. [3 definitions]
commission the act of doing, performing, or committing. [7 definitions]
commissioner the head of a government department. [2 definitions]
commit to do; perform. [3 definitions]
committee a group of persons chosen to give attention to a particular matter.
commodity something that can be bought and sold.
common shared with another or others. [4 definitions]
common cold a common sickness that causes sneezing, sore throat, coughing, and a stuffy nose; cold.
common denominator a number into which the denominators of two or more fractions can all be evenly divided.
commoner a person who is not a member of the nobility.