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refrigerate	to make cold or cool.
refrigerator	a room, box, or appliance where food is kept cold to prevent spoiling.
refuge	a place that protects from danger or difficulty. [2 definitions]
refugee	a person forced to leave his or her home or country to seek safety or protection.
refund¹	to return or pay back. [2 definitions]
refusal	the act or an instance of not doing what is requested or saying no to something.
refuse¹	to not accept or agree to; turn down. [3 definitions]
refuse²	something without any worth; garbage; trash.
regain	to get back; recover. [2 definitions]
regard	to think of with a particular feeling or in a certain way; consider. [5 definitions]
regarding	having to do with; about; concerning.
regardless	without concern or thought. [2 definitions]
regime	a system of rule or government. [2 definitions]
regiment	a troop of soldiers made up of two or more battalions.
region	a large space or area. [2 definitions]
regional	of or relating to a particular geographical area.
register	a book used to record names, events, or other information. [9 definitions]
registered nurse	a nurse who has completed training and who has a license to practice nursing. In order to receive a license, nurses must pass an examination given by a state government.
regret	to feel sorry or guilty for. [3 definitions]
regular	normal or usual. [7 definitions]
regularly	at evenly spaced points of time; routinely.

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