We might call it a "voice," but idiolect is the right word for anyone's unique use of language.
to make an argument or explain a process
Which paragraph does the writer use to engage the audience?
You might use a toothbrush. You might use soap. You might use a sponge. You might use a towel. You might use a facecloth. You might use a facewash. You might use water.
To make it sound less what it really was.
A writer might choose to use the passive voice to shift the focus onto the receiver of the action rather than the doer, to create a sense of formality or objectivity, or to emphasize the action rather than the one performing it.
A writer might choose to use stream of consciousness to provide a raw and unfiltered insight into a character's thoughts and emotions. This technique allows for a deeper exploration of a character's psyche and can create an intimate connection with the reader by immersing them in the character's inner world.
There is no scientific evidence suggesting that people with synesthesia use more of their brain than those without it. Synesthesia is believed to involve cross-activation between different areas of the brain, rather than an overall increase in brain activity.
By zooming in and out of one perspective
A writer might choose formal diction for academic or professional settings to convey authority and professionalism, while informal diction can be used to create a casual tone or connect with readers on a personal level. The choice of diction depends on the intended audience, purpose of the writing, and desired tone or mood.
By zooming in and out of one perspective
To prove your thesis use a direct quote.
It can be beneficial, for example in one of the most common types of synesthesia where the synesthete sees letters (and words) and numbers as having colours it can help to memorize spellings and numbers or dates, or it can be used to help remember telephone numbers and names. I have synesthesia and I often use it to help me remember the spellings of peoples names and words in foreign languages.
We might call it a "voice," but idiolect is the right word for anyone's unique use of language.
to show why one event followed another.
Repetition is a way to emphasize key ideas.
to make an argument or explain a process