His kindness is so great that it's unable to put into words.

The lyrics of this song are very deep.

This picture is fixed to the frame.

I forgot the password, so I can't log in.

I forgot the password for this computer.

The language used by courtesans during the Edo period, that's what 'Kuruwa Kotoba' is.

Kyoto dialect, or 'Kyogengo', is a dialect of Kyoto, and its unique sound is attractive.

Ranuki words are one of the dialects of Japanese.

He proceeded with the conversation using 'ranukikotoba'.

In classical literature, pillow words were often used.