Do you hyphenate 3D or leave it one word?
http://www.answers.com/topic/3d-file-extension
Check on the links after the words in red (Did you mean:) --
It seems that if you mean "3-dimensional," you hyphenate it. Check to be sure, though.
Nope! I guess it can be either hyphenated or not:
http://www.onelook.com/?w=3D&ls=a
To determine whether to hyphenate "3D" or leave it as one word, you can consult a style guide or dictionary. The answer may depend on the specific style guide or dictionary you follow, as there is some variation in usage.
Here are a few guidelines to consider:
1. Hyphenation: Some sources suggest hyphenating "3D" when used as an adjective before a noun, such as "a 3D movie" or "a 3D printer." This helps to clarify that "3D" modifies the noun that follows.
2. One word: On the other hand, "3D" is often written as one word when used as a stand-alone noun or an adjective after the noun, such as "I watched the movie in 3D" or "They offer 3D printing services."
However, it is essential to note that preferences may vary among different style guides or publishers. To ensure consistency in your writing, it is advisable to check the relevant guidelines or consult an official dictionary as per your specific writing context and requirements.