I am currently working on a theme WordPress for a particular type of user and wanted to add a default set of terms to the custom post type that I am creating.

If this is you also then you need to use the wp_insert_term() function to achieve this.

An example. I wanted to add the term ‘Variable’ to the custom taxonomy ‘constructs’, so I use

wp_insert_term( 'Variable', 'constructs', array('description'=> 'my term description'

    'slug' => 'variable'
    'parent'=> 0 ) );