What does overboard mean?
Overboard is an English word with both a literal and a figurative range of meanings. Literally, it describes something that has gone off a boat or ship, usually into the water. Figuratively, it means excessively, beyond reasonable limits, or in a way that lacks restraint: a person may go overboard with spending, enthusiasm, detail, or excitement. It can also suggest that something has gone off course or beyond its proper boundary. The literal sense is rooted in nautical usage, but the word is now most often encountered in idiomatic expressions concerning excessive behavior. In formal or careful writing, “excessively” or “beyond reasonable limits” may communicate the intended meaning more directly. Although primarily an adverb, overboard can also function as a less common adjective before nouns such as costs, and this usage often indicates an amount greater than expected or appropriate.
Away from a boat or ship, especially into the water; by extension, excessively or beyond what is reasonable or appropriate.
"The sudden gust knocked the sailor overboard."
The figurative meanings are much more common in modern everyday English than the literal nautical sense.
Beyond or in excess of a stated amount or limit.
"The contractor's estimate included overboard shipping costs."
This adjective is relatively uncommon and is mainly used in business or formal contexts to describe excessive amounts.
A sailor who falls overboard literally enters the water, while someone who goes overboard figuratively does something excessively or loses all restraint.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does overboard come from?
Overboard is an English compound formed from the Germanic elements over and board. The word board developed from an Old English term related to planks, shields, and the side of a vessel, while the nautical meaning grew from the idea of passing over the side of a ship. Its figurative use developed from the literal image of leaving a vessel or losing control and has since become especially familiar through expressions such as go overboard.
How overboard is actually used
The literal nautical sense is relatively uncommon in everyday speech, while the figurative sense meaning excessively is widely used. The adjective is less common and usually appears in expressions such as overboard costs or overboard expenses.
Easily confused with overboard
Aboard means on or onto a boat or ship, whereas overboard means off the vessel, often into the water.