Template tags are functions that Lilina exposes to templates specifically for inclusion in templates.
Sister Tags
Tags beginning with the_ are functions that output the result, while tags beginning with get_the_ return the result. These tags are both listed together on the codex under the the_ version of the name, but the corresponding get_the_ tag is listed as the sister tag.
Tag List
Note: This is not usually kept up to date. The best way to check what template tags are available is to check the inc/core/skin.php file. All template tags are defined in this file.