uppercase letters
nounUK /ˈʌpəkeɪs ˈlɛtəz/
US /ˈʌpərkeɪs ˈlɛtərz/
Uppercase letters are big letters like A, B, and C.
Please write your name in uppercase letters at the top of the page.
OTHER MEANINGS
2. Letters used at the start of a sentence or a proper noun.
Every sentence begins with an uppercase letter.
3. A style of typing where all letters are capitals, often used for emphasis.
He typed his message in uppercase letters to show he was excited.
4. The large characters on a keyboard, produced with the Shift key.
Hold the Shift key to type uppercase letters.