At its most basic level, comics is a medium that expresses ideas using images, often combined with text or other visual information. This medium contains several formats, including:
You might also see terms referring to comics by their language/country of origin. These include: manga (Japanese comics and comics done in a Japanese style); manhwa (Korean comics); manhua (Chinese comics); bandes dessinées (Franco-Belgian comics); and fumetti (Italian comics, though it sometimes also refers to comics made using photographs rather than pictures).
For help navigating the terminology of the medium: