Use this database to find real life images of your vocabulary word or images that represent the geometric figure.
BRITANNICA IMAGE QUEST:
Google Images
If you search in Google Images, you can filter the results to find rights free images.
Once you search for an image, complete the following steps:
Click "Tools"
Select "Image Rights" (use the drop down menu)
Select "Labeled for Noncommercial Reuse with Modification"
You are welcome to use the images displayed as a result of this filter, with proper attribution.