The condition called de Quervain's tenosynovitis causes pain on the inside of the wrist and forearm just above the thumb. It is a common problem affecting the wrist and is usually easy to diagnose.
â¢ DOUBLE FLAT (noun) The noun DOUBLE FLAT has 1 sense: 1. a musical notation of two flats in front of a note indicating that it is to be lowered by two semitones. Familiarity information: DOUBLE FLAT used as a noun is very rare.
Double space. In text formatting, a double space means sentences contain a full blank line (the equivalent of the full height of a line of text) between the rows of words. By default, most programs have single spacing enabled, which is a slight space between each line of text, similar to how this paragraph looks.