We found one dictionary that defines the word boundary-stone:

General (1 matching dictionary)

1. boundary-stone, boundary-stone: Collins English Dictionary

▸ Words similar to boundary-stone ▸ Usage examples for boundary-stone ▸ Idioms related to boundary-stone ▸ Wikipedia articles (New!) ▸ Words that often appear near boundary-stone ▸ Rhymes of boundary-stone ▸ Invented words related to boundary-stone