According to the role they play in constructing words, morphemes are subdivided into roots and affixes. .................................................................................................................... into prefixes, suffixes and infixes

Derivational suffixes ................... of the original word: they may change the word class, specify the word or generalise it. Most scholars recognise suffixes forming nouns, verbs, adjectives and adverbs

Criteria of synonymity is interchangeability. .......................... that neither the traditional definition of synonyms nor the new version provide for any objective criterion of similarity of meaning.

An infix is .....................................................placed with in the word, like –n– in stand. The type is not productive

Clippings, blendings and acronyms are subclasses of so called “portmanteau words” ..................... fragments of two or more words

Antonyms are words of the same part of speech, but opposite in meaning. Many words, especially those denoting concrete objects (chair, tree, tiger) have no antonyms. Usually adjectives denoting qualities, verbs ............................. actions or state and abstract nouns have antonyms