Typographical symbols in ms (The GNU Troff Manual)

#### 4.6.5.2 Typographical symbols

`ms` provides a few strings to obtain typographical symbols not easily entered with the keyboard. These and many others are available as special character escape sequences—see the groff_char(7) man page.

String: `\*[-]` ¶

  Interpolate an em dash.

String: `\*[Q]` ¶
String: `\*[U]` ¶

  Interpolate typographer’s quotation marks where available, and neutral double quotes otherwise. `\*Q` is the left quote and `\*U` the right.