By number of speakers:
* Most spoken languages globally: Mandarin Chinese, Hindi, English, Spanish, Arabic, Bengali, Portuguese, Russian, Japanese, and Urdu.
* Most spoken languages in a specific region: This varies greatly depending on the region. For example, in Europe, the most spoken languages are English, German, French, Spanish, Italian, and Russian.
By influence and impact:
* Languages of international communication: English is by far the most influential language in this category. Others with significant global influence include French, Spanish, and Arabic.
* Languages of science and technology: English is also dominant here, though scientific publications are increasingly appearing in other languages like Chinese and Japanese.
* Languages of the internet: While English dominates the internet, other languages are becoming increasingly present, especially Mandarin Chinese and Spanish.
By historical significance:
* Ancient languages with lasting impact: Latin, Greek, Sanskrit, Hebrew, and Arabic have significantly shaped world history and culture.
* Languages of major historical empires: These include languages like French, Spanish, Portuguese, English, Arabic, and Mandarin Chinese, which were spread by colonialism and trade.
By cultural importance:
* Languages of major cultural movements: This would include languages like French, Italian, German, and Japanese, which have played significant roles in art, literature, and music.
To get a more accurate answer, please specify what you mean by "main" languages. For example, you could ask:
* What are the main languages spoken in Europe?
* What are the main languages used in international business?
* What are the main languages of the internet?
Once you provide context, I can give you a more specific and relevant answer.