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 ŀl.)

A digraph in Irish orthography

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

elle, the 14th letter of the Spanish alphabet, after l and before m

The fourteenth letter of the Tagalog alphabet (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