Identify the error in the following sentence: She was definitely overdressed for the occasion.

The sentence "She was definitely overdressed for the occasion" is grammatically sound and clearly communicates its message. The construction of the subject "She" and the verb "was" matches correctly, and there are no fragments or run-on issues present.

Given this context, the assertion of a spelling error does not apply because all words in the sentence are used correctly and spelled appropriately. The term "definitely," "overdressed," and the phrases surrounding them are all accurately represented. The correct understanding here is that the sentence stands as it is without error, making the option indicating no error the right choice. By recognizing that the original answer points to a spelling error, it underscores a critical aspect of proofreading: ensuring all components of a sentence are accurate, but also understanding what constitutes an error versus clarity in writing.