A pen name or pseudonym.

(archaic, literary and poetic) A feather of a bird, especially a large or showy one used as a decoration.

(transitive, also figuratively) To adorn, cover, or furnish with feathers or plumes, or as if with feathers or plumes.

(archaic, nautical) A piece of lead attached to a line, used in sounding the depth of water, a plumb bob or a plumb line. / (archaic) Hence, any weight.

(intransitive) To drop swiftly, in a direct manner; to fall quickly.

Having a full and rounded shape; chubby, somewhat overweight. / Fat. / Sudden and without reservation; blunt; direct; downright.

(intransitive) To grow plump; to swell out. / (transitive) To make plump; to fill (out) or support; often with up. / (transitive) To cast or let drop all at once, suddenly and heavily.

(intransitive) To drop or fall suddenly or heavily, all at once.

Directly; suddenly; perpendicularly.

The sound of a sudden heavy fall.