inboard

1 of 3

adverb

in·​board ˈin-ˌbȯrd How to pronounce inboard (audio)
1
: inside the line of a ship's bulwarks or hull
2
: toward the center line of a vehicle or craft (such as a ship or aircraft)

inboard

2 of 3

adjective

1
: located inboard
an inboard engine
an inboard spoiler
2
of a boat : having an inboard engine

inboard

3 of 3

noun

: a boat with an inboard motor

Examples of inboard in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adverb
Retraining one's brain to use them would take longer than a single test drive—not only are the displays inboard of where you're used to looking, but there's also a difference in spatial understanding between a reflection and a projection. Elana Scherr, Car and Driver, 4 Oct. 2022 The stock Toyota wheels are +56, which means the tires sit 2.2 inches farther inboard than most aftermarket wheels. Wes Siler, Outside Online, 15 Oct. 2020
Adjective
The company intends to offer it as a standalone solution as well as a critical component of its E-Motion 180 inboard and outboard systems. New Atlas, 3 Oct. 2024 It’s also designed with power options that include both inboard and outboard engines. Kevin Koenig, Robb Report, 19 Apr. 2023
Noun
Also important is proper maintenance of the boat — either with inboard or outboard engines. Grethel Aguila, Miami Herald, 27 May 2025 The yacht has a top speed of more than 70 mph, with two V12 inboard 2,000-horsepower engines, according to the listing. Michael Butler, Miami Herald, 5 May 2025 See All Example Sentences for inboard

Word History

First Known Use

Adverb

1830, in the meaning defined at sense 1

Adjective

1847, in the meaning defined at sense 1

Noun

1939, in the meaning defined above

Time Traveler
The first known use of inboard was in 1830

Browse Nearby Words

Cite this Entry

“Inboard.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inboard. Accessed 6 Jun. 2025.

Kids Definition

inboard

adverb
in·​board
ˈin-ˌbō(ə)rd,
-ˌbȯ(ə)rd
1
: inside the hull of a ship or boat
2
: close or closest to the center line of an aircraft or ship
inboard adjective

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