6in4

name

name ·Rare ·Advanced level

Definitions

Proper Noun
  1. 1
    An Internet transition mechanism for migrating from Internet Protocol version 4 (IPv4) to IPv6.

Etymology

From 6 + in + 4.

Related phrases

internet protocol

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