- Use a hyphen to join two words into one; for example, cloud-based, auto-format, eye-opener
Em dash (--)
- An em dash (--) is used to highlight a phase; for example, "I went to the market--in Petersburg--to see what the fuss was about." In this case, you are wanting the reader to clearly understand that Petersburg is important.
- An alternative, is to use brackets (); "I went to the market (in Petersburg) to see what the fuss was about." In this case, you are not so concerned about the reader understanding where the market was.
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