Denotation

Denotation: The strict, literal, dictionary definition of a word.

"And on a day we meet to walk the line
And set the wall between us once again.
We keep the wall between us as we go.
To each the boulders that have fallen to each."

This poem has examples of denotation because of the meaning of the word "wall" .The wall in this poem is actually a wall that's between them.

Consonance

Consonance: The repetition of a consonant sound within two or more words in close proximity.



" Peter Piper picked a peck of pickled peppers.
A peck of pickled peppers Peter Piper picked.
If Peter Piper picked a peck of pickled peppers,
Where's the peck of pickled peppers Peter Piper picked? "

This is an example of consonance because of the consonance letter"p". The sound of the "p" is used in all the sentences of this tongue twister. 

Connotation

Connotation: The non-literal, associative meaning of a word; the implied, suggested meaning.



"True! uneasy, very, very strangely uneasy I had been and am; but why will you say that I am lacking stability? The ailment had honed my senses, not consumed, not lessened their strength. Above all was the sense of hearing really good. I heard everything in the air and in the ground. I heard many things in the underworld. How then am I lacking stability? Listen and observe how wonderfully, how calmly, I can tell you the whole story."
(The Tell-Tale Heart, Edgar Allan Poe)


In this excert Poe gives some words a different meaning of what they actually mean.  For example "unseasy" could be another word for worried. "Stability" in this case could mean sence. "Air" is substitued for the word sky, or for Heaven. And "ground" for Earth. THis shows some of the examples of connotations.