The background design in lace-making. / (cooking) Brown residue in pans from cooking meats and vegetables. / (information science) A group of records having shared provenance.

(slang, derogatory, Canada, US) A jerk; an obnoxious person.

Resembling or characteristic of scurf.

(historical, WW2) A garishly painted aircraft, flying as an initial reference point for a bomber formation in the early part of a mission.