Stylistic semasiology

Repetition is an expressive stylistic means widely used in all varieties of emotional speech — in poetry and rhetoric, in everyday intercourse.
The simplest variety of repetition is just repeating a word, a group of words, or a whole sentence:
«Scroodge went to bed again, and thought, and thought, and thought it over and over and over».
It is an EM of language used when the speaker is under the stress of emotion:
e.g. Stop! I don't want to hear; I don't want to hear what you've come for.
Stylistic Repetition has different functions. It aims at logical emphasis of the key-word of the utterance. Repetition is classified according to composi­tional design.
1) Simple repetition:
e.g. Alone, alone, all, all alone.
alone in a wide, wide sea.
(Coleridge)
2) Anaphora (initial repetition):
e.g. The man behind the war. The man who had engineered it.
My heart's in the Highlands,
My heart is not here,
My heart's in the Highlands
a chasing the dear.
(R.Burns)
3) Epiphora (final repetion):
e.g. "I am exactly the man to be placed in a superior position in such a case as that. I am above the rest of mankind, in such a case as that" (Ch Dickens) (the function of the background).
4) Framing At the end of a syntactical unit the word used at the beginning of it is repeated:
e.g. "No wonder, his father wanted to know what Bossinney meant, no wonder" (J. Galsworthy).
Framing makes the whole utterance more compact and complete; it is more effective in singling out paragraphs.
5) Anadiplosis (linking repetition). The beginning of a syntactical unit repeats the concluding words of the previous syntactical unit:
e.g. "We were talking about how bad we were.
Bad, from the medical point of view"
(Gerome K. Gerome).
The function: to intensify the utterance. Repetition may suggest meditation, sadness, monotony, hopelessness and it imparts rhythm.
Synonymical repetition is another variety. This is the repetition of the same idea by using synonymous words and phrases which add some shades of meaning:
e.g. EMs: lord and master, clean and neat, far and away, pure and simple.
"Mr. Pickwick with his foresight and sagacity" (Ch. Dickens).
He was confined to his own room,
...Then he was afraid to leave his prison...
(S. Maugham)
There are two terms frequently used to show the negative attitude of the critic to all kinds of synonymical repetition. These are: tautology and pleonasm.
Tautology (morphological repetition) is a repetition of the same idea in an immediate context. The notion is expressed by different parts of speech belonging to the same word-cluster:
e.g. to live a life, to die the death, fat butter,
sick patient (unnecessary use of words).
Pleonasm is the use of more words in a sentence than necessary to express the meaning. It is redundancy of expression, the words swell and become weaker:
e.g. But that's impossible and cannot be.