What term describes the arrangement of words that expresses the author's individuality and intent?

The term that describes the arrangement of words that expresses the author's individuality and intent is "style." Style encompasses various elements such as diction, sentence structure, figurative language, and overall tone, which together create a unique voice for the author. This voice is shaped by the author's choices and techniques in writing, reflecting their personality, perspectives, and intentions behind the text.

When considering other options, syntax specifically refers to the arrangement of words and phrases to create well-formed sentences but does not inherently express individuality and intent in the same holistic way that style does. Theme relates to the central idea or underlying message of a work, while thesis denotes a statement that a writer intends to support or prove within their work. Thus, these terms, while related to aspects of writing and analysis, do not encompass the broader concept of style that includes the author's unique expression and intent.