What does "metatable" mean?

A table (of key-value pairs) associated with another object, which uses the functions (or other data) it contains to define the behaviour of that object under certain conditions.

Metatable

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
A table (of key-value pairs) associated with another object, which uses the functions (or other data) it contains to define the behaviour of that object under certain conditions.

Etymology

From meta- + table.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.