Abstract
Owing to a great number of substrata and adstrata of native languages the Mexican Spanish figures among the geolinguistic variants which offer heterogeneity. Its research has undergone a number of peripetia.
There are analyzed various issues in this paper that are in the center of the current research interest: languages in contact, either autochthonic or English; the issue of a study within lexicological and lexicographical areas from the diachronic and synchronic point of view as well as corpus linguistics.