1. a ship or aircraft that operates on a regular route between two or more ports or airports, especially as part of a scheduled service
Usage: transportation; chiefly British
2. a fabric or material inserted between two layers of cloth to provide stiffness, support, or reinforcement
Usage: textiles; sewing

Examples

• The interliner service connects the two major cities with daily flights.
• She chose a lightweight interliner for the collar of her dress shirt.
• The interliner between the outer and inner fabric gives the jacket its structure.
• Passengers prefer the interliner because it offers competitive pricing on the route.
• The tailor selected a fusible interliner to reinforce the lapels.