What is the meaning of "capline" in calligraphy?

The term "capline" in calligraphy specifically refers to the imaginary line that marks the upper boundary for uppercase letters (capitals). This means that capital letters extend to the capline, while lowercase letters typically do not reach this height. This guideline is essential for maintaining proper alignment and consistency in lettering, especially when working with different font styles.

Understanding the capline helps calligraphers maintain uniformity in the height of capital letters relative to lowercase letters. This consistency contributes to the overall aesthetic appeal and legibility of the text. In various styles of calligraphy, adhering to the capline ensures that capital letters are visually distinct, creating a balanced and harmonious composition on the page.