Do You Capitalize The Word Is In A Title

When writing a title, one common question is whether to capitalize the word is. Because of that, although it is a short verb, style guides differ on how to treat it in title case, and the answer can affect the professionalism of your work. This article explains the rules, compares major style guides, provides clear examples, and offers practical tips to help you decide when to capitalize is in a title.

Title Case Basics

Title case is a capitalization style used for headings, titles of works, and subheadings. Major words typically include nouns, pronouns, verbs, adjectives, adverbs, and subordinating conjunctions. Also, the general principle is to capitalize major words while leaving minor words in lowercase. Minor words—often articles, coordinating conjunctions, and short prepositions—are usually lowercased unless they appear as the first or last word of the title.

Because is is a verb, it falls into the major‑word category in most systems. Still, some guides make exceptions for very short verbs, treating them like minor words when they are not the first or last word. Understanding these nuances requires looking at each style guide individually.

How Major Style Guides Treat “Is”

The Chicago Manual of Style (CMOS)

Chicago recommends capitalizing all major words, including verbs of any length. So, is is always capitalized in title case, except when it falls at the very beginning or end of a title where it would already be capitalized by default.
Example: “The Truth Is Out There” (Chicago) Easy to understand, harder to ignore. That's the whole idea..

Modern Language Association (MLA) Handbook

MLA follows a similar approach to Chicago: verbs are capitalized regardless of length. Is is treated as a major word and thus capitalized in title case.
Example: “What Is Love?” (MLA).

American Psychological Association (APA) Style

APA’s title case rules also require capitalizing all words of four letters or more, plus all major words regardless of length. Since is is a verb, it is capitalized.
Example: “How Is Climate Change Affecting Agriculture?” (APA) That's the whole idea..

Associated Press (AP) Style

AP style uses sentence case for most headlines, but when title case is required (e.g., for composition titles), AP capitalizes principal words, including verbs of any length. As a result, is is capitalized.
Example: “Who Is the New Mayor?” (AP) Worth keeping that in mind..

The New York Times Manual

The Times follows a variant of title case where words shorter than four letters are lowercased unless they are the first or last word. Because is is two letters, it would normally be lowercased. On the flip side, the Times makes an exception for the verb to be in all its forms (is, am, are, was, were, be, been, being) and capitalizes it.
Example: “Why Is the Sky Blue?” (NYT).

Wikipedia’s Manual of Style

Wikipedia’s guideline for article titles is to use sentence case, but when title case is applied (e.g., for certain project pages), it follows the rule that words shorter than four letters are lowercased unless they are the first or last word. Is is therefore lowercased in mid‑title positions.
Example: “What is the Meaning of Life?” (Wikipedia title case variant).

Summary of Treatment

The consensus among academic and journalistic styles is to capitalize is. Only a few niche guidelines (like Wikipedia’s title‑case variant) treat it as a minor word.

Practical Examples

Below are several titles showing how is appears under different style choices. Note that the first and last words are always capitalized in title case, regardless of length Easy to understand, harder to ignore..

Observe that in the Wikipedia‑style column, is remains lowercase when it appears in the middle of the title, while the first and last words are still capitalized.

Common Mistakes

1. Over‑lowercasing short verbs – Writers sometimes apply a blanket rule that all words under four letters are lowercased, mistakenly turning is into lowercase even in styles that require it to be capitalized.
2. Inconsistent application within a document – Switching between style guides mid‑paper creates confusion. Choose one guide and stick to it.
3. Forgetting first‑ and last‑word capitalization – Even if a guide says to lowercase short verbs, the first and last words of a title are always capitalized.
4. Confusing sentence case with title case – In sentence case, only the first word and proper nouns are capitalized; is would be lowercase unless it starts the sentence. Ensure you know which case your publisher or instructor requires.

Tips for Consistent Capitalization

• Select a style guide early – Determine whether you will follow Chicago, MLA, APA, AP, or another guide before drafting your title.
• Create a checklist – List the parts of speech you need to capitalize (nouns, pronouns, verbs, adjectives, adverbs, subordinating conjunctions) and the minor words you will lowercase (articles, coordinating conjunctions, short prepositions).
• Use automated tools wisely – Many word processors and online title‑case converters let you pick a style guide. Verify the output, especially for verbs like is, be, do, and

and have—these short verbs often trigger the most uncertainty. While many style guides agree that they should be capitalized when they function as the main verb in a title, there are nuances to consider:

• Context matters – If the verb is part of a compound phrase (e.g., “Is and Has Benefits”), treat each word according to its grammatical role. The first word of the title is always capitalized, but the second verb may be lowercased if the guide calls for minor words to be minimized.
• Proper nouns override rules – Even when a verb would normally be lowercased, a name (e.g., “Why Is Microsoft Essential?”) remains capitalized because it is a proper noun.
• Consistency trumps convenience – Choose one style guide for an entire manuscript and apply it uniformly. Inconsistent capitalization can distract readers and undermine the professionalism of the work.

Leveraging Technology Wisely

Modern word processors and online title‑case converters are valuable allies, but they are not infallible. Most tools allow you to select a specific style (Chicago, APA, AP, etc.) and will automatically adjust short verbs like is, be, do, have, and can.

1. Review the output manually – Scan the converted title for any mis‑capitalized words, especially those that are proper nouns or part of a compound phrase.
2. Adjust for journal or publisher preferences – Some academic journals have unique conventions that differ from the major style guides; note these early and build them into your checklist.
3. Test with sample titles – Run a few representative titles through the tool to see how it handles edge cases before relying on it for the final manuscript.

A Final Checklist for Title Capitalization

• ☐ Identify the primary style guide (Chicago, MLA, APA, AP, NYT, Wikipedia‑style, etc.).
• ☐ Capitalize the first and last words, regardless of length.
• ☐ Apply title‑case rules to major words (nouns, pronouns, verbs, adjectives, adverbs, subordinating conjunctions).
• ☐ Lowercase minor words (articles, coordinating conjunctions, short prepositions) unless they are the first or last word.
• ☐ Verify that proper nouns, acronyms, and brand names retain their capitalization.
• ☐ Run the title through a converter, then manually proofread for any errors introduced.

Conclusion

Capitalizing is—and other short verbs—in titles may seem trivial, but it reflects a larger commitment to clarity and professionalism in scholarly and journalistic writing. Also, by selecting a consistent style guide, creating a concise checklist, and using automated tools as a second pair of eyes, you can see to it that every title you craft adheres to the highest standards of punctuation and presentation. Remember: a well‑capitalized title not only honors the style guide but also respects your readers, signaling that attention to detail extends to every element of your work.