We found one dictionary that defines the word shorten sail:

Tech (1 matching dictionary)

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

Phrases: to shorten sail, more... ▸ Words similar to shorten sail ▸ Usage examples for shorten sail ▸ Idioms related to shorten sail ▸ Wikipedia articles (New!) ▸ Words that often appear near shorten sail ▸ Rhymes of shorten sail ▸ Invented words related to shorten sail