Mongrel and Pie-dog

Mongrel noun - An offspring of parents with different genes especially when of different races, breeds, species, or genera.

Pie-dog and mongrel are semantically related. In some cases you can replace phrase "Pie-dog" with "Mongrel", this terms are similar.

Pie-dog noun - Ownerless half-wild mongrel dog common around Asian villages especially India.

Mongrel and pie-dog are semantically related. You can use "Mongrel" instead a noun phrase "Pie-dog".