A linetype is a repeating pattern of dashes, dots, and blank spaces displayed in a line or a curve. You assign linetypes to objects either by layer or by specifying the linetype explicitly, independent of layers.
In addition to choosing a linetype, you can set its scale to control the size of the dashes and spaces, and you can create your own custom linetypes.
Some linetype definitions include text and symbols.

You can define a custom linetype that will orient the imbedded text to keep it readable automatically.

For more information about controlling text in linetypes, see Text in Custom Linetypes.
Custom Linetypes in the Customization Guide