›normal or average: The price quoted is for the standard size.standard practice/procedure The board has been careful to follow standard procedures and employment law.The current model comes with all these extra features as standard.
›(written abbreviationstd.)MEASURESfollowing a particular set of rules or measurements, without any changes or added details: standard contract/letter/replystandard format/sizeCandidates need to enter their expenditure records in a standard format on a Web-based form. → Comparenon-standard
›[before noun]used by most people: It has become the standard text for all trainee accountants.