inboard

American  

[in-bawrd, -bohrd] / ˈɪnˌbɔrd, -ˌboʊrd /

adjective

1. located nearer the longitudinal axis or center, as of an airplane.

   the inboard section of a wing.

2. located inside a hull or aircraft.

   a motorboat with an inboard engine.

3. (of a motorboat) having the motor inboard.

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adverb

1. inside or toward the longitudinal axis or center of a hull, aircraft, machine, etc.

noun

1. an inboard motor.

2. a boat equipped with an inboard motor.

inboard British  

/ ˈɪnˌbɔːd /

adjective

1. (esp of a boat's motor or engine) situated within the hull Compare outboard

2. situated between the wing tip of an aircraft and its fuselage

   an inboard engine

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adverb

1. towards the centre line of or within a vessel, aircraft, etc

Etymology

Origin of inboard

First recorded in 1840–50; originally phrase in board

Example Sentences

A group of women in floral dresses puttered out to meet the Warrior on a bum-bum, an inboard motorboat.

From Slate • Jul. 22, 2025

In December 1978, Yoko Ono gifted her husband with a brand-new Yamaha electric-acoustic piano, complete with a pair of microphones and inboard recording capabilities.

From Salon • Oct. 26, 2023

When Shane, who is from a boat-racing family, was 13 he was in Seattle for Seafair as his mom, Robin, who won an inboard championship, was in town for a racing convention.

From Seattle Times • Oct. 13, 2022

Several other items in containers were also stolen, including a marine inboard motor, fishing tackle and power tools.

From BBC • Jan. 28, 2022

The sea would splash inboard perhaps, run down the deck.

From "Rebecca" by Daphne du Maurier