<em>Al</em> is a suffix that is used to indicate that something is "of the kind of" or that it has "the character of" something else. In other words, it indicates that the word with suffix is related to the one without it by being of a similar kind. Common examples of this use are terms such as "seasonal" (related to seasons) and "natural" (related to nature).
They rely on me pretty much. I have an older brother so it's not that much but I do a lot for my family. I think that if they relied on me less I would never learn to be responsible for myself or anyone else.
