We found one dictionary that defines the word sub postmasters:

General (1 matching dictionary)

1. sub-postmasters, sub-postmasters: Collins English Dictionary

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