Definition of tout de suite in US English:

tout de suite

adverb

  • Immediately; at once.

    ‘she left tout de suite’
    • ‘Their appalling techno recreation of Pink Floyd's ‘Comfortably Numb’ stormed UK dancefloors and ‘Laura,’ with its nauseatingly catchy piano/bass interplay and George Michael dramatics, will likely follow tout de suite.’
    immediately, at once, straight away, right away, instantaneously, suddenly, abruptly, all of a sudden, on the instant, at a stroke, forthwith, then and there, there and then, here and now, that minute, this minute, that very minute, this very minute, that instant, this instant
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Origin

French, literally ‘quite in sequence’.

Pronunciation

tout de suite

/ˌto͞ot ˈswēt/