1
a
: forming an integral part of a structure or object
a camera with a built-in flash
especially
: constructed as or in a recess in a wall
a built-in bookshelf
b
: built into the ground
a built-in swimming pool
2
a
: inherent
a built-in advantage
b
: already established
Their best-seller status gave them a built-in audience.
Cite this Entry
“Built-in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/built-in. Accessed 4 Sep. 2026.
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