In our last column, we introduced three dashed punctuation marks: the hyphen, the en dash, and the em dash. We started by covering the hyphen's role in making phrasal adjectives-one of the trickiest areas in writing. In this column, we'll explore other uses for hyphens and then discuss the hyphen's slightly larger cousin, the en dash. Other uses for hyphens Aside from connecting words to make phrasal adjectives, hyphens have several other uses in writing. Spelling out numbers: 21 to 99 and fractions.' Some writing guides, including The Bluebook, suggest writing out numbers less than 100 in word form. I prefer to use numbers in these situations, for ease of reading. But if you follow the guidance and use words, you'll need hyphens to join those words...