It is a universal truth that nobody teaches you how to write and how to express yourself. Since every writer is unique in terms of his expression. So, the choice and the use of words and phrases in a speech or writing are commonly known as diction. The usage of the right word in poetry is inevitable and irreplaceable. The effective use of right words can greatly enrich a poem. Further, words that are used in poetry have two meanings.
Denotative meaning of a word is its literal or dictionary definition of that word. Thus, it is having a single meaning.
: Connotation refers to the wide array of positive and negative associations that most words carry with them. Thus, it can have a large number of suggested meanings.