The list of terms, abbreviations and other pertinent subjects explained in brief.
| Term | Explanation | Sources |
|---|---|---|
| Carati | Old medieval form of ship ownership still active in the 19th century distributed in 24 shares signifying 100 % of ownership. Owners would share carati in whole numbers and fractions according to property of the ship and investment. | |
| FF | fitto in ferro - fitted in iron | |
| FFFR | fitto in ferro e foderato in rame - fitted in iron and lined with copper | |
| FFR | fitto e foderato in rame - fitted and lined with copper | |
| FR | fitto in rame - fitted in copper | |
| FZ | foderato in zinco - lined with zinc | |
| GC | grande cabotaggio - great costal navigation | |
| GCE | grande cabottaggio esteso - great coastal navigation denoting Adriatic and Mediterranean navigation | |
| GCR | grande cabotaggio ristretto - small coastal navigation denoting Adriatic and Ionian Seas, the scope changed during the 19 century | |
| GR | grandamente riparato - significantly repaired | |
| GRT | grandamente riparato in terra - significantly repaired on the dry dock | |
| LC | lungo corso - long-haul navigation | |
| RIN | rinovato - renewed | |
| RIP | riparato - repaired | |
| RT | riparato in terra - repaired on the dry dock | |
| Work | Work done in shipbuilding and maintenance. |