Ключевые слова: alphabet, attention, background, blocks, board, building, business, button, concept, continuity, control, cube, definition, difference, display, exception, exceptional, exclusion, extraordinary, guide, header, information, label, letter, management, mark, message, mind, note, notice, paint, plan, post, project, recovery, risk, safe, sign, solution, symbol, tag, text, thought, typo, typography, unique, unusual, wood, wooden, word,