Simple Definition of mortise

from our Learner's Dictionary

mortise

noun

variants also British mortice
ˈmoɚtəs How to pronounce mortise (audio)
plural mortises
technical : a hole that is cut in a piece of wood or other material so that another piece (called a tenon) will fit into it to form a connection

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“Mortise.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/mortise. Accessed 24 Jun. 2026.

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