We found one dictionary that defines the word sub post-office:

General (1 matching dictionary)

1. sub post-office: TheFreeDictionary.com

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