What is the meaning of the word "lyric"?

Definitions:

expressing deep emotion adjective
- the dancer's lyrical performance
of or relating to a category of poetry that expresses emotion (often in a songlike way) adjective
- lyric poetry
relating to or being musical drama adjective
- the lyric stage
the text of a popular song or musical-comedy number noun
- Our compositions always started with the lyrics.
used of a singer or singing voice that is light in volume and modest in range adjective
- a lyric soprano