Is the phrase "27 year old male" hyphenated?

"27-year-old male"

no

What's the question?

To determine whether the phrase "27 year old male" should be hyphenated, we need to consider the context and the usage of the phrase.

In this case, "27 year old male" is an adjectival phrase describing a person. When multiple words are used together as a single modifier before a noun, they are often hyphenated to clarify their relationship.

For example:

- A 27-year-old male participated in the study.
- The report is about a 27-year-old male.

In these sentences, the phrase "27-year-old" is acting as a compound adjective modifying the noun "male." The hyphens help to connect the words and ensure the reader understands that they should be considered together as a unit.

However, it's important to note that hyphenation rules can vary depending on style guides and specific cases. Style guides like the Associated Press (AP) and the Chicago Manual of Style (CMS) may have differing guidelines for hyphenation.

Therefore, it's recommended to consult the specific style guide you are following or to consider the context and purpose of your writing to determine whether hyphenation is needed in the phrase "27 year old male."