nickel / nickle 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. 👇
nickel: (noun) a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite. (noun) a United States coin worth one twentieth of a dollar. (noun) five dollars worth of a drug. (verb) plate with nickel.
nickle: NA
nickel: n·IH·k·ah·l
nickle: n·IH·k·ah·l
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)