Literature is generally used in English Language Teaching (ELT) for the development of knowledge about the language. It helps the learners to get familiar with the socio-political backgrounds of target language society and also makes them understand how communication takes place in a particular community.
The abbreviation that's shown after a word in the dictionary tells you what part of speech the defined word is.
The word could be defined as a:
noun (n)
pronoun (pron)
adjective (adj)
adverb (adv)
verb (vb)
conjunction (conj)
preposition (prep)
interjection (interj)
