Main Entry: ¹stealth

Pronunciation: \ˈstelth\

Function: noun

Etymology: Middle English stelthe; akin to Old English stelan to steal

Date: 13th century

1 a archaic : theft b obsolete : something stolen
2 : the act or action of proceeding furtively, secretly, or imperceptibly <the state moves by stealth to gather information — Nat Hentoff>
3 : the state of being furtive or unobtrusive
4 : an aircraft-design characteristic consisting of oblique angular construction and avoidance of vertical surfaces that is intended to produce a very weak radar return