an eight-legged predatory arachnid with an unsegmented body consisting of a fused head and thorax and a rounded abdomen. Spiders have fangs that inject venom into their prey, and most kinds spin webs in which to capture insects

an object resembling a spider, especially one having numerous or prominent legs or radiating spokes

move in a scuttling manner suggestive of a spider

a treecreeper spidered head first down the tree trunk

when the search engines spider your site they'll find all of the pages