This can be a bit tricky because it ends in "-ure", which often indicates a masculine noun. However, there are some exceptions, and "lecture" is one of them.
Here's how you can tell:
* Articles: The definite article used for "lecture" is "la" (the), which is the feminine singular article.
* Adjectives: Adjectives that modify "lecture" need to be in the feminine form.
For example:
* La lecture est intéressante. (The reading is interesting.)
* Une lecture agréable. (A pleasant reading.)