Determining whether "across" should be capitalized in a title is a common question that highlights the nuance of English grammar rules. The answer is not a simple yes or no, as it depends entirely on the specific style guide you are following and the word's position within the title. Generally, "across" is a preposition, and prepositions are lowercase unless they are the first or last word of the title.
The Standard Rule for Prepositions
The primary guideline for title capitalization, often dictated by The Chicago Manual of Style and the AP Stylebook, is to capitalize the major words in a title. This typically includes nouns, verbs, adjectives, and adverbs. Conversely, articles (a, an, the), coordinating conjunctions (and, but, or), and prepositions are usually kept lowercase, regardless of their length. Since "across" functions as a preposition indicating movement from one side to the other, it falls into the category of words that are traditionally not capitalized in the middle of a title.
Examples of Standard Capitalization
To illustrate this rule, consider how "across" appears in standard title formatting. In the title "Driving Across the Country," the word "Across" is capitalized because it is the first word of the title. In the title "Traveling Across State Lines," the word remains lowercase because it is in the middle. The word "Lines" is capitalized because it is a noun, demonstrating the contrast between the major word and the preposition.
Exceptions and Specific Style Guides
While the standard rule is clear, some style guides introduce slight variations that affect the answer. The Modern Language Association (MLA) style is more rigid in its formatting, stating that all words with four or more letters should be capitalized, regardless of their grammatical role. Under MLA, "across" would indeed be capitalized in most titles because it contains five letters. Therefore, the context of the specific style guide is a critical factor in the decision-making process.
APA and AMA Considerations
The American Psychological Association (APA) style aligns closely with the standard rule, advising that prepositions of any length, including "across," remain lowercase in titles. Similarly, the American Medical Association (AMA) manual generally follows the same logic, treating "across" as a subordinating conjunction or preposition that does not require capitalization mid-title. Always verify the specific requirements of the publication or institution you are writing for, as adherence to a particular style guide is often mandatory.
The Last Word Rule
There is one universal exception to the middle-title lowercase rule: the final word of a title is always capitalized, even if it is a preposition like "across." This rule ensures consistency and grammatical completeness. For instance, in the title "The Journey Across ," the word "Across" is capitalized not because it is a significant noun, but because it concludes the title. This is a fundamental formatting detail that applies universally, regardless of the style guide.
Practical Application and Summary
To summarize, the capitalization of "across" is primarily determined by its grammatical function and its location within the title. In the vast majority of standard title formats, you will write "across" in lowercase when it appears in the middle of the title. You will capitalize it when it begins or ends the title. The only deviation occurs in specific academic styles like MLA, which may override this based on word count.
Ultimately, understanding the logic behind these rules empowers you to write titles with confidence. Rather than viewing this as a rigid constraint, see it as a tool for creating clear and professional headings. By consistently applying these guidelines, you ensure your writing appears polished, authoritative, and correctly formatted for your intended audience or publication.
