Freeburn

name, noun

name, noun ·2 syllables ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An unconstrained fire.

    "Underwriters Laboratories Inc. 2 showed that rate-of-rise or rate-anticipating thermal detectors spaced as little as two feet or six feet directly above a 2½-square-foot alcohol fire, after a freeburn of 30 seconds, either did not detect at all within 30 seconds or, did so between 28 and 30 seconds."

Proper Noun
  1. 1
    A surname.

Example

More examples

"Underwriters Laboratories Inc. 2 showed that rate-of-rise or rate-anticipating thermal detectors spaced as little as two feet or six feet directly above a 2½-square-foot alcohol fire, after a freeburn of 30 seconds, either did not detect at all within 30 seconds or, did so between 28 and 30 seconds."

Etymology

Etymology 1

From free + burn.

Etymology 2

Variant of Freeborn.

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