We found one dictionary that defines the word boarding ladder:

Tech (1 matching dictionary)

1. SeaTalk Dictionary of English Nautical Language (No longer online)

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