What do I do for diction? My teacher's definition is a word choice intended to convey a certain effect. Help, please!

Also What is the significance of the title: The Lord of the Flies
I think the title hardly goes with the main idea of the book

Diction has to do with choice of words, depending on who your intended audience is. If you are writing a children's story, would you choose 3 and 4 (or more) syllable words that are very formal? If you are writing a letter to the editor of the New York Times, would you write as if you were in 3rd grade?

Choice of vocabulary ...

"DICTION: The choice of a particular word as opposed to others. A writer could call a rock formation by many words--a stone, a boulder, an outcropping, a pile of rocks, a cairn, a mound, or even an "anomalous geological feature." The analytical reader then faces tough questions. Why that particular choice of words? What is the effect of that diction? The word choice a writer makes determines the reader's reaction to the object of description, and contributes to the author's style and tone. Compare with concrete diction and abstract diction, above. It is also possible to separate diction into high or formal diction, which involves elaborate, technical, or polysyllabic vocabulary and careful attention to the proprieties of grammar, and low or informal diction, which involves conversational or familiar language, contractions, slang, elision, and grammatical errors designed to convey a relaxed tone."
from http://web.cn.edu/kwheeler/lit_terms_D.html

I have no ideas about LOTF. Never read it, sorry!

To improve your diction, which refers to word choice, you can try the following steps:

1. Vocabulary Expansion: Read widely to expose yourself to a variety of words and their different meanings, nuances, and connotations. This will help you build a more extensive vocabulary to choose from when selecting words.

2. Contextual Understanding: Pay attention to the specific context in which you are writing or speaking. Consider the subject matter, audience, and desired effect. Tailor your word choice to match the tone, message, and purpose of your communication.

3. Use the Dictionary: When unsure about the meaning or appropriateness of a word, consult a dictionary. Look up definitions, synonyms, antonyms, and examples of usage to gain a better understanding of words and their potential effects.

4. Revise and Edit: After writing, revise your work with a focus on word choice. Look for repetitive or vague language and replace it with more precise, descriptive, or impactful words. Edit your work multiple times to refine your diction.

Regarding the significance of the title "The Lord of the Flies," it does have relevance to the main ideas of the book, despite the initial appearance. Here's an explanation:

In the novel by William Golding, a group of boys is stranded on an uninhabited island and descends into chaos and savagery. The title refers to a severed pig's head, which one of the characters, Simon, encounters in the forest. This severed head becomes a symbol of the inherent evil and darkness within humankind.

Metaphorically, "The Lord of the Flies" represents the destructive and corruptive forces that influence the boys, leading them to commit acts of violence. It embodies the gradual loss of civilization and descent into primal instincts, signifying the darkness lurking within human nature despite any semblance of order or morality.

Despite the initial appearance that the title may not directly reflect the main idea, it holds symbolic meaning and highlights one of the central themes of the novel, which is the inherent darkness present in human beings when freed from societal constraints.