1(Usually hyphenated) a mark left by a branding iron; also figurative (now rare).
2A (metal) plaque or sign fixed on the front of a building indicating the insurance company providing the fire insurance and emergency fire service for that building (now historical).
Origin
Early 16th century.
Definition of fire mark in US English:
fire mark
noun
1(Usually hyphenated) a mark left by a branding iron; also figurative (now rare).
2A (metal) plaque or sign fixed on the front of a building indicating the insurance company providing the fire insurance and emergency fire service for that building (now historical).