A Colonel, abbreviated to Col., is a senior military officer rank. It resides above that of Lieutenant Colonel and below that of Brigadier. Historically, in the 17th, 18th and 19th centuries, a Colonel was typically the chief commander in charge of a regiment in the British Army (originally the leader of a column). Modern usage, however, varies greatly. A Colonel was the chief acting officer of artillery or engineer regiments is always a colonel, but in the infantry and cavalry he is frequently known as a Lieutenant Colonel, the full rank being often conferred as a honorary distinction upon some Royal or distinguished personage. A colonel or Lt-colonel's pay varies from £328 to £447 a year according to the branch of the service. 
References / notes
Glossary of words and phrases
The above term is listed in our glossary of words and phrases of the Armed Forces of Great Britain during the Great War. Included are trench slang, service terms, expressions in everyday use, nicknames, the titles and origins of British and Commonwealth Regiments, and warfare in general. These words and phrases are contemporary to the war, which is reflected in the language used. They have been transcribed from three primary sources (see Contents). Feel free to expand upon and improve this content.
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