Have you ever wondered, “Is ‘in’ capitalized in a title?” You should always capitalize “in” when it is the first or last word in a title. So, for example, titles like “In the Heart of the Sea” or “It’s Caving In!” would both have “in” capitalized. Read on to explore the capitalization rules for “in” across major style guides so you can gain a clearer understanding of when to capitalize this tiny yet impactful word.
Related:
- Is “It” Capitalized in a Title?
- Is “For” Capitalized in a Title?
- Is “To” Capitalized in a Title?
- Is “The” Capitalized in a Title?
Title Capitalization Rules Per Style Guide
Navigating the intricacies of title capitalization can often feel like tiptoeing through a grammatical minefield. After all, different style guides often offer varying rules, which just adds to the confusion. So, to start, let’s break down the title capitalization rules for “in.”
Chicago Manual of Style (CMOS)
In CMOS style, all short and long prepositions, including “in,” are not capitalized because they are considered minor words. So, unless “in” is the first or last word of the title, you should keep it in lowercase.
American Medical Association (AMA)
AMA also has the same rule as Chicago style. You keep it in lowercase unless it’s the first word of the title or subtitle. This AMA title capitalization rule also applies to articles and coordinating conjunctions.
Associated Press Style (AP Style)
The capitalization rule for “in” in the Associated Press Stylebook is also straightforward. Prepositions, including “in,” are generally not capitalized in titles unless they are the first or last word or part of a hyphenated compound word.
Modern Language Association (MLA)
MLA style follows a similar pattern to the AP style regarding the capitalization of “in” in titles. If “in” appears in the middle of a title, you should not capitalize it. The MLA handbook dictates that if it’s at the beginning or end of a title, you should capitalize it.
The New York Times Manual of Style and Usage
The New York Times Manual of Style and Usage also has the word “in” in lowercase. However, unlike other style guides, there are other exceptions to consider aside from the word appearing at the beginning or end of the article.
According to NY Style, if it turns into an adverb, you should capitalize the word “in.” The word “in” should also be capitalized if it’s a part of a hyphenated compound.
American Psychological Association (APA)
For APA style, you should also have the word “in” in lowercase. This is because the style guide dictates that short prepositions (alongside articles and short conjunctions) are minor words.
Wikipedia Manual of Style
If you are following the Wikipedia Manual of Style, only prepositions that are five words are capitalized. Since “in” is only two letters long, you should keep it in lowercase. However, there is an exception you should always keep in mind: if the preposition is not used as a preposition (ex., part of a phrasal verb or the first word of in a compound preposition).
Bluebook
In Bluebook’s title capitalization rules, prepositions that are four letters or fewer should not be capitalized. This lowercase rule is also applicable to articles and conjunctions. The only time you should have “in” and other prepositions capitalized is when it is the first word of a title or follows immediately after a colon.
When Should You Capitalize “In”?
Now that we’ve explored the rules across major style guides, let’s take a more direct approach toward answering the question, “Is ‘in’ capitalized in a title?” by covering when to capitalize “in” in a title.
- First word of the title
- First word after a colon
- Last word of the title
- Part of a hyphenated compound (except for the Chicago Manual of Style)
Tip: Whatever style guide you are following, the first letter of the first word of a title is always in uppercase. The first word of a subtitle is always capitalized.
When Shouldn’t You Capitalize In?
If “in” is in the middle of the title and not part of a hyphenated compound, you should keep “in” in lowercase.
Final Thoughts
So, is “in” capitalized in a title? In general, “in” is only capitalized in a title if it is the first or last word of a title and appears after a colon. However, some style guides have additional rules. When in doubt, you use a free title capitalization tool.
