Meaning

• 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

Meaning

• (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."