Post Title Format — Displays on single-post pages. Supports these variables:

• {post} — The post's title.
• {category} — The title of the post category.
• {categories} — List of the post's categories.
• {tags} — List of the post's tags.
• {author} — The Display Name of the post's author.
• {author_username}, {author_firstname}, {author_lastname}, {author_nickname} — The username, first name, last name, and nickname of the post's author, respectively, as set in his or her profile.

Page Title Format — Displays on WordPress Pages. Supports these variables:

• {page} — The page's title.
• {page_parent} — The title of the page's parent page.
• {author} — The Display Name of the post's author.
• {author_username}, {author_firstname}, {author_lastname}, {author_nickname} — The username, first name, last name, and nickname of the post's author, respectively, as set in his or her profile.

Category Title Format — Displays on category archives. The {category} variable is replaced with the name of the category, and {category_description} is replaced with its description.

Tag Title Format — Displays on tag archives. The {tag} variable is replaced with the name of the tag, and {tag_description} is replaced with its description.

Day Archive Title Format — Displays on day archives. Supports these variables:

• {day} — The two-digit day number, e.g. 23.
• {month} — The name of the month, e.g. April.
• {year} — The year, e.g. 2009.

Month Archive Title Format — Displays on month archives. Supports {month}, {monthnum}, and {year}.

Year Archive Title Format — Displays on year archives. Supports the {year} variable.

Author Archive Title Format — Displays on author archives. Supports the same author variables as the Post Title Format box, i.e. {author}, {author_username}, {author_firstname}, {author_lastname}, and {author_nickname}.

Search Title Format — Displays on the result pages for WordPress's blog search function. The {query} variable is replaced with the search query as-is.

404 Title Format — Displays whenever a URL doesn't go anywhere. Supports this variable:

• {url_words} — The words used in the error-generating URL. The first letter of each word will be capitalized.

Pagination Title Format — Displays whenever the visitor is on a subpage (page 2, page 3, etc.) of the homepage or of an archive. Supports these variables:

• {title} — The title that would normally be displayed on page 1
• {num} — The current page number (2, 3, etc.)
• {max} — The total number of subpages available. Would usually be used like this: Page {num} of {max}