1. An act of hindering someone's plans or efforts
   "took satisfaction in foiling her plans";
   - frustration, thwarting
    
2. The act or process of applying a thin layer of metal leaf to a surface for decoration or protection
   "The artist specialized in foiling techniques for illuminated manuscripts"
    
3. (in water sports) the use of a hydrofoil to lift the board or vessel above the water's surface, reducing drag and increasing speed
   "The foiling technology revolutionized competitive sailing"

1. Hinder or prevent (the efforts, plans, or desires) of
   "foil your opponent";
   - thwart, queer [informal], spoil, scotch, cross, frustrate, baffle, bilk [informal], scupper [informal]
    
2. Cover or back with foil
   "foil mirrors"
    
3. Enhance by contrast
   "In this picture, the figures are foiled against the background"

Derived forms: foilings

Type of: contrast, counterpoint, cover, forbid, foreclose, forestall, hinderance [rare], hindrance, interference, preclude, prevent

Encyclopedia: Foiling