Final answer:
Ted's writing style, characterized by the use of words that match only their dictionary definitions, is best described by the term denotation.
Step-by-step explanation:
The term that best describes Ted's writing style, where he only uses words whose meaning matches the dictionary definition, is denotation. Denotation refers to the literal, dictionary meaning of a word. Conversely, connotation pertains to the implied or associated meaning of a word that goes beyond its dictionary definition. Since Ted strictly adheres to the dictionary meanings of words, without venturing into the realm of their associated or emotional references, his style is characterized by denotation.