Block capitals refer to a type of font or writing where each letter is written in capital letters and is uniform in size and shape, creating a square-shaped block of text. There are many synonyms for block capitals, including uppercase, all caps, capital letters, majuscule, and caps lock. The use of block capitals in writing is common in many contexts, such as headings, titles, and signs, especially in print media like newspapers, books, and magazines. The use of block capitals in digital writing is also common, where it aids in creating more pronounced texts, emphasizing specific words or phrases, and conveying a sense of urgency in the message.