un soupçon
David est à l'abri de tout soupçon - David is free of any suspicion.
Je sens juste un soupçon d'ail - I taste just a hint of garlic.
Veux-tu un soupçon de vin ? - Would you like a drop of wine?
Related: soupçonner - to suspect; soupçonnable (adj) - arouses suspicion; soupçonneusement (adv) - suspiciously; soupçonneux (adj) - suspicious
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Pronunciation: [soop so(n)]Â