1. A layer of material inserted between the outer fabric and lining of a garment for warmth, structure, or shape
   "The coat's interlining provided extra insulation against the cold"

1. Supply an additional lining between the fabric and main lining (e.g. for making curtains more insulating or stronger)
   "They interlined the curtains to block out more light and improve insulation"
    
2. To insert words or lines between existing lines of text
   "The editor interlined comments throughout the manuscript"
    
3. To write or print on alternate lines
   "The poem was interlined with its translation"

Derived forms: interlinings

Encyclopedia: Interlining