buoyancy

To float or to rise when in a fluid


Compartments

a separate division or section.


Displace

To remove physically out of position (water displaced by a floating object)


Emigration

To leave a country or region to live elsewhere.


Description | Source
sign saying better life.https://images.search.yahoo.com/yhs/search;_ylt=A0geKWdzSzZbWVUASnMPxQt.?p=emigration&fr=yhs-domaindev-st_emea&fr2=piv-web&hspart=domaindev&hsimp=yhs-st_emea&type=dhm_A0BL6_ext_bcr__alt__ddc_srch_searchpulse_net

Hull

The frame or body of a ship, flying boat, or airship.


Description | Source
diagram of a boat.https://aussieboatloans.com.au/blog/wp-content/uploads/2015/02/partsofboat.jpg

Luxury

Something adding to pleasure or comfort but not absolutely necessary. 


Tragically

very unfortunate