Firewire

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A high-speed digital link standard covered by the IEEE 1394-1995 standard.
  2. 2
    A system of wires or tubes designed to detect fire and trigger automatic fire-extinguishers in an aircraft engine compartment for example.

Etymology

From fire + wire. In the first sense ("high-speed digital link standard"), the term was originally a trade name—capitalized FireWire—used by Apple Inc. as it developed the standard in the late 1980s and early 1990s.

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