lust

A feeling of strong desire, especially such a feeling driven by sexual arousal.

“Seeing Kim fills me with a passionate lust.”

A general want or longing, not necessarily sexual.

“The boarders hide their lust to go home.”

A delightful cause of joy, pleasure.

“An ideal son is his father's lasting lust.”

Virility; vigour; active power

(usually in the phrase "lust after") To look at or watch with a strong desire, especially of a sexual nature.

“He was lusting after the woman in the tight leather miniskirt.”