To include as a part.
To put constraints upon; to restrain; to confine; to keep within bounds.
To hold inside.
To have as an element or subset.
To consider as part of something; to comprehend.
To use a directive that allows the use of source code from another file.
To bring into a group, class, set, or total as a (new) part or member.
A piece of source code or other content that is dynamically retrieved for inclusion in another item.