What does «expresar» mean in Spanish?

To express what one thinks, feels or wants.

Examples of use in Spanish: "expresar su afecto con palabra emocionada"

"expresar sus sentimientos con la música".

"quiero expresarte mis deseos de buen augurio"
To be something a manifestation of what someone thinks, feels or wants.

Examples of use in Spanish: "su mirada expresaba miedo"

"es una melodía que expresa muchos sentimientos".

"su sonrisa expresa satisfacción y plenitud".
To express an artist's feeling or emotion through his or her work.

Examples of use in Spanish: "el artista usa su arte para expresar sus emociones".
(expresarse) Communicating through words.

Examples of use in Spanish: "se expresa muy bien, da gusto escucharlo".