NonBreakingSpace
\[NonBreakingSpace]
Alias: nbs. Spacing character. Generates a space with the same width as \[RawSpace], but with no line break allowed to occur on either side of it. See The Mathematica Book: Section 2.8.11 and Section 3.10.5. See also: \[NoBreak] , \[InvisibleSpace] , \[NewLine] .