What is the meaning of Ll?

lines

The seventeenth letter of the Albanian alphabet, written in the Latin script.

(used to represent the sound /ʎ/. See also l·l.)

A letter of the Quechua alphabet, written in the Latin script.

The fourteenth letter of the Spanish alphabet, written in the Latin script; preceded by l and followed by m.

the fourteenth letter of the Abecedario, called elle and written in the Latin script

The sixteenth letter of the Welsh alphabet, called èll and written in the Latin script. It is preceded by l and followed by m.

Source: wiktionary.org