Examples: NFL, NASA, PSP, HIPAA,random Word(s) in meaning: chat global warming Postal codes: USA: 81657, Canada: T5A 0A7 What does HTML stand for? Your abbreviation search returned 6 meanings
Confidence votes 190. The sides of a boat are port {left}, starboard {right}, bow {front}, stern {back}, hull{bottom}, and keel{center}.
The beam is the widest part of the boat when measured a few inches below the top of the side walls, usually where the rub rails are. If it's a sail boat, it's the post on which the boom is, and the 54  means 54 inches. Beam is the measurement of the width of the boat, at the widest part.