How many languages are estimated to exist worldwide?

There is no definitive answer to how many languages exist worldwide, as the definition of a "language" is complex and often debated. However, estimates range from around 6,500 to 7,100 languages.

Here's why the number is so difficult to pin down:

* Defining a "language": Some argue that dialects with mutual intelligibility should be counted as one language, while others consider them distinct.

* Uncontacted or under-documented languages: Many languages, particularly in remote areas, are spoken by small groups and haven't been fully documented or studied.

* Extinction and language revitalization: Languages are constantly evolving, some becoming extinct while others are being revitalized.

Despite these challenges, the number of languages worldwide is undeniably vast and represents a treasure trove of human history and culture.