bark / barque 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. 👇
bark: (noun) tough protective covering of the woody stems and roots of trees and other woody plants. (noun) a noise resembling the bark of a dog. (noun) a sailing ship with 3 (or more) masts. (noun) the sound made by a dog. (verb) speak in an unfriendly tone. (verb) cover with bark. (verb) remove the bark of a tree. (verb) make barking sounds. (verb) tan (a skin) with bark tannins.
barque: NA
bark: b·AA·r·k
barque: NA
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)