U000E

u000E refers to the Unicode code point U+000E, commonly known as Shift In (SI). In Unicode and ASCII, it is a non-printing control character within the C0 controls, with decimal value 14. It resides in the Basic Latin block and has the general category Cc (Other, Control). Like other control codes, it has no visible glyph and is not intended for direct display.

Historically, Shift In, along with Shift Out (U+000F), was used on 7-bit teletypes and early terminals to switch between an ordinary ASCII character set and an alternate character set. This allowed access to additional symbols without increasing data width. With the advent of more capable encodings, this mechanism fell out of common use and many systems no longer respond to SI.

In modern software, U+000E is typically treated as a non-printing control character. It may appear in data as a stray code point, be stripped by text cleanup processes, or cause encoding/validation issues if not properly handled. In source code or data, programmers may represent it using a Unicode escape such as \u000E, or, in HTML contexts, as a numeric character reference, though many environments disallow or ignore such control characters.

See also: ASCII control characters, Shift Out, C0 Controls and Basic Latin.