Use a hyphen to create new words that combine meanings, such as 'part-time' or 'editor-in-chief'. She has a 'full-time' job.
Pro Tip 2/3
Word Division
A hyphen is used when a long word doesn't fully fit at the end of a line and splits onto the next. A long word may be hyphen- ated if it reaches the margin.
Pro Tip 3/3
Prefixes/Suffixes
Hyphens connect prefixes like 'ex-', 'non-', or 'post-' and suffixes like '-elect' to root words. The 'ex-president' attended the meeting.