This is the 33rd most frequent Persian word.
افزود
"Added" or "increased."
Here, the word "افزود" signifies the act of increasing the speed of the car. It expresses a modification or augmentation made to an object or parameter, in this case, speed.
بر سرعت ماشین افزود تا زودتر برسد.
He increased the car's speed to arrive earlier.
In this context, "افزودن" (adding) refers to the action of putting additional salt into food, demonstrating the improvement or enhancement function of the word. It is used in its infinitive form here.
افزودن نمک به غذا طعم آن را بهتر میکند.
Adding salt to the food enhances its flavor.
The word "افزود" in this sentence is used to indicate that the subject, 'او' (he/she), included an additional statement in their speech. It is used in the form of narrating someone's action of adding content in a speech.