1. Slice of sweet raised bread baked again until it is brown and hard and crisp
   - zwieback [N. Amer], rusk, twice-baked bread

Type of: toast

• informercial
• informing
• infotainment
• infotech
• infra
• infra dig
• infract
• infraction
• infractor
• infrahuman
• inframaxillary
• infrangible
• infraorbital artery
• infrared
• infrared emission
• infrared frequency
• infrared lamp
• infrared light
• infrared radiation
• infrared ray
• infrared spectrum
• infrared therapy
• infrasonic
• infrasound
• infrastructure