tailwind

== English == === Etymology === From tail +‎ wind. === Pronunciation === IPA(key): /ˈteɪlwɪnd/ === Noun === tailwind (plural tailwinds) (nautical, physics) A wind that blows in the same direction as the course taken by an aircraft, sailing ship, bird, etc.; a following wind. Synonym: fair wind (figurative, by extension) A force that accelerates progress. ==== Antonyms ==== headwind, foul wind ==== Translations ==== === Verb === tailwind (third-person singular simple present tailwinds, present participle tailwinding, simple past and past participle tailwinded) Of a wind, to blow on a windmill or wind turbine in such a way that wind pressure is exerted on the wrong side of the sail or turbine assembly.