L (letter)

L is the twelfth letter of the modern Latin alphabet. The uppercase form is "L" and the lowercase form is "l". In most languages that use the Latin script, it represents a sound known as a lateral approximant—a sound produced with the tongue touching the roof of the mouth and air flowing out on both sides of the tongue. The symbol for this sound in the International Phonetic Alphabet is /l/.

In Somali written in the Latin script adopted in 1972, L is one of the consonants. It appears in words such as "libaax" (lion), "laba" (two), and "caleen" (neck). When written as a double letter (ll), it generally indicates a long or emphatic sound, as in "gaballo" (horses); however, how the double letter functions depends on the specific word.

History of the letter form

The origin of the letter is traced to early Semitic writing, where a character called lamed represented the /l/ sound. This character passed into Phoenician, then Greek, where it became lambda (Λ, λ). The Romans adopted it from Greek in a form close to what we know today, eventually simplifying it to two straight lines: one vertical and one diagonal.

Uses across different languages

Different languages use L in different ways. In Spanish, "ll" represents a sound distinct from L alone. Polish has a separate letter called Ł, whose sound resembles the English w. In English, the L at the end of a word is pronounced differently from L at the beginning, a quality known as "dark l".

As a symbol

In the Roman numeral system, L stands for fifty. In international measurement standards, the lowercase letter l (or uppercase L) is used to denote the litre, a unit of volume. In mathematics and engineering, L is likewise used as a symbol for various purposes, such as length.