Pronunciation: [smˈə͡ʊkbɒks] (IPA) 
Smokebox is a component of a steam locomotive, where the smoke and gases produced by the engine are collected and sent up a chimney. The correct spelling is /ˈsməʊkbɒks/, with the sound of "o" as in "no" and "o" as in "box". The "e" at the end is silent. The first syllable is stressed, and the stress is on the second "o". This word is often misspelled as "smockbox" or "smokeboks".
A smokebox refers to a specific component found in steam locomotives or certain industrial boilers. It is a container-like structure situated at the front of the locomotive or boiler that is responsible for collecting and containing smoke, steam, and ash produced during the combustion process.
Typically made of metal, the smokebox is carefully designed and positioned to ensure that the gases and exhaust produced during the burning of fuel, such as coal or wood, are efficiently channeled away from the firebox and released into the atmosphere through the locomotive's chimney or exhaust stack. The smokebox also plays a vital role in preventing sparks and embers from escaping the locomotive, reducing the risk of fires.
The construction of a smokebox includes various elements to facilitate its function. These may include smoke deflectors, cleaning doors, ash pans, and tubes connecting it to the rest of the locomotive or boiler system. Often, a smokebox will possess a hinged smokebox door, which can be opened to allow access for cleaning or maintenance purposes.
Beyond its functional role, the smokebox is an iconic element of steam locomotives, often adorned with ornate designs and brass accents, encapsulating the romance and nostalgia associated with the golden age of railways.
The word "smokebox" originated in the late 18th century, combining two distinct terms: "smoke" and "box".
1. Smoke: The term "smoke" derives from the Middle English word "smoc", which meant vapor or fumes. This word itself came from the Old English word "smoc", referring to smoke, dust, or vapor. The Old English term can be traced back to the Proto-Germanic word "smukkaz", meaning smoke or steam.
2. Box: The word "box" has its roots in the Old English word "box", which referred to a container or receptacle. This Old English term originated from the Latin word "boxus", which came from the Greek word "pyxos" meaning boxwood, the wooden material commonly used to construct containers.
