MediaWiki:Uploadtext
From Wiktionary
Use the form below to upload files. To view or search previously uploaded images, go to the list of uploaded files or view the upload log. To include the image in a page, use a link in the form [[{{ns:6}}:file.jpg]], [[{{ns:6}}:file.png|alt text]] or [[{{ns:-2}}:file.ogg]] for directly linking to the file.
Please keep in mind that the simple English Wiktionary currently does not accept any images except for any pictures, graphics, etc. that you have created and are willing to submit under the GNU Free Documentation License. Otherwise, please submit them to Commons.
Your images may be deleted without warning if not properly tagged.