In any language we can find words with only one meaning and words with only two or more meanings. Words with only one meaning are called monosemantic words. Words with many meaning are called polysemantic words. Polysemantic words are more than monosemantic words.
Linguistics distinguish primary meaning and secondary meaning in a word. The primary meaning appears earlier than the secondary meaning, that's why the primary meaning is called the original meaning of the word. The secondary meaning is derived from the original meaning.
Linguists distinguish direct or nominative meaning and figurative meaning in a word. The meaning is nominative when it nominates the object without the help of context. The meaning is figurative when the object is named and at the same time characterized through its similarity with another object.
In the latest research works linguists distinguish denotative and connotative meanings in a word. The denotative meaning expresses a notion or an actually existing thing of reality (a book, a tree, friendship etc.), and makes the communication possible. Connotative meaning is an additional meaning to the denotative meaning of the word.
The denotative and connotative meaning of the word taken together are their lexical meanings. All the lexical andGrammatical meanings of the word from its semantic structure.
There are two type of meaning in a language: the grammatical and the lexical meanings.
The lexical meaning is the realization of concept or emotion by means of definite language system.
The grammatical meaning is more abstract and more generalized than the lexical meaning.