Question: In the following sentence, should the words “on site” be hyphenated?
They removed the trees and dumped them on site.
Answer: No. You use hyphenation when two words appear as a single adjective before a noun—such as well-known expert or on-site trees—or when the compound is listed as a hyphenated word in the dictionary.
More examples of when—and when not—to hyphenate:
- She has a part-time job.
- He works part time.
- He accepted an out-of-court settlement.
- They settled out of court.