категория(A UI element that a user can click on to associate categories with an appointment; A classification for grouping content by user-defined criteria such as page contents, file types, or a similar distinction; A keyword or description used to identify groups of related items; A tab-like navigation link that provides access between different sections of information within the Options dialog box)
категории(A list of categories that developers select from to make their app more discoverable; A feature that allows the user to apply custom or default markers to items (e.g. Outlook messages or OneNote content) in order to categorize information for easy retrieval and sorting)