outboard

American  

[out-bawrd, -bohrd] / ˈaʊtˌbɔrd, -ˌboʊrd /

adjective

1. located on the exterior of a hull or aircraft.

2. located farther from the center, as of an aircraft.

   the outboard end of a wing.

3. (of a motorboat) having an outboard motor.

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adverb

1. outside or away from the center of a hull, aircraft, machine, etc..

   The sail swung outboard.

noun

1. an outboard motor.

2. a boat equipped with an outboard motor.

outboard British  

/ ˈaʊtˌbɔːd /

adjective

1. (of a boat's engine) portable, with its own propeller, and designed to be attached externally to the stern Compare inboard

2. in a position away from, or further away from, the centre line of a vessel or aircraft, esp outside the hull or fuselage

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adverb

1. away from the centre line of a vessel or aircraft, esp outside the hull or fuselage

noun

1. an outboard motor

2. a boat fitted with an outboard motor

Etymology

Origin of outboard

First recorded in 1815–25; out- + board

Example Sentences

Geological Survey, the carp can jump as high as 10 feet into the air when spooked by outboard motors or other disturbances.

From The Wall Street Journal • Apr. 8, 2026

The yachtsmen pulled over to ask two loggers for help, and one of the loggers noticed an improperly secured outboard motor in the back seat of the rental car.

From Slate • Jul. 22, 2025

He will go on to supply more footage including other, similar looking, boats as well as outboard engines being fired up.

From BBC • Oct. 25, 2024

“It was a 24-foot single outboard vessel that ran aground and capsized,” said Kai Bond, chief of Laguna Beach Marine Safety.

From Los Angeles Times • Sep. 5, 2024

I can’t say for certain whether God was listening, but it wasn’t long afterward that I heard the wheezy chug-a-chug- chug of a small outboard motor.

From "Flush" by Carl Hiaasen