A contemptible or powerless person.
An arthropod (in the Insecta class) characterized by six legs, up to four wings, and a chitinous exoskeleton.
Any small arthropod similar to an insect, including spiders, centipedes, millipedes, etc.
An individual person who acts on his or her own initiative, without partners, especially one who has sole responsibility for doing something questionable, confidential, or iniquitous.