1) something made by a person e.g. a tool or work of art (artefact)

2) a work of art etc that looks genuine but is not (fake)

3) (of) a work of art in which designs etc are made by fitting together coloured pieces of stone etc (mosaic)

4) a repeated theme in music; a main (and often repeated) feature in a work of art (motif)

5) a literary work or work of art using different styles or one in the style of another (pastiche)

6) the act, process, of reproducing; something reproduced, especially a work of art (reproduction)