This is a list of languages by total number of speakers.
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It is difficult to define what constitutes a language as opposed to a dialect. For example, while Arabic is sometimes considered a single language centred on Modern Standard Arabic, other authors consider its mutually unintelligible varieties separate languages. [1] Similarly, Chinese is sometimes viewed as a single language because of a shared culture and common literary language, but sometimes considered multiple languages. [2] Conversely, colloquial registers of Hindi and Urdu are almost completely mutually intelligible and are sometimes classified as one language, Hindustani. Rankings of languages should therefore be used with caution, as it is not possible to devise a coherent set of linguistic criteria for distinguishing languages in a dialect continuum. [3]
There is no single criterion for how much knowledge is sufficient to be counted as a second-language (L2) speaker. For example, English has about 450 million native speakers but depending on the criterion chosen can be said to have as many as two billion speakers. [4]
There are also difficulties in obtaining reliable counts of speakers, which vary over time because of population change and language shift. In some areas, there are no reliable census data, the data are not current, or the census may not record languages spoken or may record them ambiguously. Speaker populations may be exaggerated for political reasons, or speakers of minority languages may be underreported in favor of a national language. [5]
