forty-ninth parallel 
The parallel of latitude 49° north of the equator, especially as forming the boundary between Canada and the US west of the Lake of the Woods.
- dispiritedness
- dispiriting
- dispiritingly
- displace
- displaced person
- displacement
- displacement activity
- displacement pump
- displacement ton
- displacer
- display
- display ad
- display cabinet
- display case
- displayed
- displayer
- display type
- displease
- displeased
- displeasingly
- displeasure
- displume
- disport
- disposability
- disposable