Ключевые слова: abbreviation, abstract, acronym, anthracite, app, app icon, application, appointment, background, black, business, button, calendar, calendar icon, cinereous, computer, concept, contemporary, date, day, design, diary, element, event, graphic, icon, illustration, image, interface, internet, isolated, monday, month, office, page, paper, pictogram, reminder, schedule, set, seven, shape, sign, square, symbol, time, web, website, week,