ward / warred are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
ward: (noun) a person who is under the protection or in the custody of another. (noun) a district into which a city or town is divided for the purpose of administration and elections. (noun) block forming a division of a hospital (or a suite of rooms) shared by patients who need a similar kind of care. (noun) English economist and conservationist (1914-1981). (noun) English writer of novels who was an active opponent of the women's suffrage movement (1851-1920). (noun) United States businessman who in 1872 established a successful mail-order business (1843-1913).
warred: (verb) make or wage war.
ward: w·AO·r·d
warred: NA
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)