any piece of equipment used for writing with one's hand, except chalk / someone who writes for a living, such as a professional writer, editorialist or journalist

fountain pen

a pencil (graphite writing-instrument)

a ballpoint pen

a pen name

nib (of a writing instrument)

calligraphy / style (of writing, painting, etc.)

(rare) to take pen to paper; to write

(rare) writer; editor; journalist

ink brush holder