What is the most used word?

It's impossible to definitively say which word is the "most used" overall. There are many factors to consider, like:

* Language: Different languages have different word frequencies.

* Context: The most common words in spoken language might differ from the most common words in written language.

* Time period: Word usage changes over time.

* Data source: The analysis depends on the data used (e.g., books, articles, social media).

However, some of the most commonly cited words in English are:

* "the" - This is often considered the most common word in English.

* "a" - Another extremely frequent word, often used as a determiner.

* "and" - A conjunction that connects words or phrases.

If you're looking for more specific information, you'll need to define the parameters of your query. For example:

* What language are you interested in?

* What type of text are you looking at (e.g., books, social media, etc.)?

* What time period are you focusing on?

Let me know if you have more information, and I can try to find the answer for you!