A more thorough explanation:

Definition: Literate is an adjective that describes someone who is able to read and write a language. It can also refer to someone who is knowledgeable and educated.

Example 1: John is literate in English and Spanish, so he can read and write in both languages.

Example 2: Mary is very literate in history, she knows a lot about different historical events and figures.

These examples illustrate the first and second meanings of the word literate. In example 1, John is able to read and write in two different languages, making him literate in both. In example 2, Mary's knowledge and education in history make her literate in that subject area.