fletch Syllabification: (fletch)Pronunciation: /fleCH/Definition of fletch verb [with object] provide (an arrow) with feathers for flight:most arrows are fletched with 3- to 5-inch feathers noun each of the feathered vanes of an arrow: [in combination]:a four-fletch arrowOrigin: mid 17th century: alteration of fledge, probably influenced by fletcherfletch in other Oxford dictionaries Definition of fletch in the British & World English dictionary