List of languages by total number of speakers in 2019

#offtopic Lists such as these should be used with caution, for the following reasons: First, it is difficult to define exactly what constitutes a language as opposed to a dialect. For example, some languages, including Chinese and Arabic, cover several mutually unintelligible varieties and are sometimes considered single languages and sometimes language families. Conversely, colloquial registers of Hindi and Urdu are almost completely mutually intelligible, so they are sometimes classified as one language,