Abstract: Homologous relation is a kind of paradigmatic relation among words, which regards association by contiguity, association by similarity, association by contrast, association by causality and other cognitive psychology as collective bases. It is mainly expressed by homologous words. The internal members of homologous word group manifest the “family resemblance” of conceptual category on the semantic meaning. In the aspect of form, they show the morphological correlation, conspicuous phenomena of word family, phonetic harmony, multi-syllable heteronym words or close-sound words and other features. In the aspect of pragmatics, they have variation of systematicness and field dependence. In the aspect of function and subjective meaning, there are differences and series of features among the internal members. The study of the homologous relation can confirm the semantic field theory, enrich the theories and the methods of lexical research, enrich the basis of compilation of high-level thesaurus, promote the exploitation and utilization of the artificial intelligence, improve the efficiency of words teaching and promote cross-cultural communication.

Key words: thomologous relation, homologous word group, correlative features, pragmatic value