A more thorough explanation:

Definition: Sigla refers to abbreviations and signs used in writing, particularly by the Glossators. The term comes from the Latin word "siglum."

Examples: Some examples of sigla include:

• etc. (et cetera)
• e.g. (exempli gratia)
• i.e. (id est)
• Mr. (Mister)
• Mrs. (Missus)

These examples illustrate how sigla are used to shorten words or phrases in writing. They are commonly used in academic writing, legal documents, and other formal contexts to save space and make writing more efficient.