Hyphenation

Date adopted: 
December 11, 2019
Last update: 
August 15, 2020

Dashes and hyphens are easy to get mixed up. Dashes are longer than hyphens and have different uses. Hyphens are mostly used to connect two-part words.

Not: She worked for a non–profit organization.
But: She worked for a non-profit organization.

We use dashes instead of commas and parentheses when we want to provide more emphasis.

When the committee discovered the errors – all nine of them – they asked for a new draft.

When you’re writing about a span or range of numbers, dates or time, use “to” rather than a dash.

Not: Please read pages 11–17 in the report.
But: Please read pages 11 to 17 in the report.