One of the most common and most used capability is starting a paragraph. There are a number of different types of paragraphs, any of which can be initiated with macros supplied by the macro package. Normally, paragraphs start with a blank line and the first line indented, like the text in this manual. There are also block style paragraphs, which omit the indentation:
Some men look at constitutions with sanctimonious reverence, and deem them like the ark of the covenant, too sacred to be touched.
And there are also indented paragraphs which begin with a tag or label at the margin and the remaining text indented.
one This is the first paragraph. Notice how the first line of the resulting paragraph lines up with the other lines in the paragraph.
longlabel This paragraph had a long label. The first character of text on the first line does not line up with the text on second and subsequent lines, although they line up with each other.
A variation of this is a bulleted list.
. Bulleted lists start with a bullet. It is possible to use other glyphs instead of the bullet. In nroff mode using the ASCII character set for output, a dot is used instead of a real bullet.