To spread out in a shape resembling a feather. Smoke began to plume from the chimney as the fire was lit.
To adorn or decorate with feathers or something resembling feathers. The dancer plumed her costume with vibrant feathers for the performance.
To preen or clean feathers, as a bird does. The parrot spent the afternoon pluming itself in the sun.
To take pride in oneself or one's achievements. He plumed himself on his successful career in the tech industry.