Noun | 1. | fire watcher - (during World War II in Britain) someone whose duty was to watch for fires caused by bombs dropped from the air Britain, Great Britain, U.K., UK, United Kingdom, United Kingdom of Great Britain and Northern Ireland - a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom |