dialect vs lexeme

dialect

noun
  • A variant of a non-standardized programming language. 

  • A variety of a language that is characteristic of a particular area, community, or social group, differing from other varieties of the same language in relatively minor ways as regards grammar, phonology, and lexicon. 

  • A language existing only in an oral or non-standardized form, especially a language spoken in a developing country or an isolated region. 

  • A variant form of the vocalizations of a bird species restricted to a certain area or population. 

  • Language that is perceived as substandard or wrong. 

  • A lect (often a regional or minority language) as part of a group or family of languages, especially if they are viewed as a single language, or if contrasted with a standardized idiom that is considered the 'true' form of the language (for example, Cantonese as contrasted with Mandarin Chinese or Bavarian as contrasted with Standard German). 

lexeme

noun
  • The abstract minimum unit of language or meaning that underlies such a set. 

  • The word-form chosen to represent such a set or family. 

  • The set itself; a lexemic family. 

  • An individual instance of a continuous character sequence without spaces, used in lexical analysis (see token). 

How often have the words dialect and lexeme occurred in a corpus of books? (source: Google Ngram Viewer )