While WordPress has some inconsistencies in how it names things, some of the function names in WordPress can indicate what that function does.
"the" in a function name means that the function will work in "the" post loop. So, for example, "the_title" will output the title of the current post in the loop.
<?php the_title(); // will output the title ?>
"get" in the function name means that the function will return the value instead of outputting it. For example, "get_the_title" will return the title instead of outputting it.
<?php get_the_title(); // will not output the title ?> <?php echo get_the_title(); //will output the title ?>
This naming convention is helpful to keep in mind when writing WordPress code snippets because it immediately indicates how a function will perform. And it might be a good idea to follow the same convention when naming your functions.