It is a subdialect of the Lower Sava Valley dialect, extending from east of Zidani Most nearly to Jurklošter, and in the areas of Rimske Toplice and Laško.
[2] The Laško subdialect exhibits strong Styrian features.
[3] The subdialect is characterized by loss of pitch accent, development of close diphthongal ie from old acute nasal *ę and neoacute etymological e and close diphthongal uo from old long and old acute nasal *ǫ and neoacute etymological o. Masculine genitive -ov has developed into -u, as has the neuter nominative adjectival ending -o.
Final -o and -e in neuter nouns has been lost, transforming these into masculine nouns that now follow the masculine declension pattern.
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