What is the meaning of Kw?

ISO 639-1 language code for Cornish.

A letter of the Bilen Latin alphabet.

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

you (see usage notes)

A letter of the Kwak'wala alphabet, written in the Latin script.

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

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

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

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

Source: wiktionary.org