Omit a Category from the loop

query_posts

https://codex.www.ads-software.com/Function_Reference/query_posts
https://codex.www.ads-software.com/Function_Reference/query_posts#Category_Parameters
https://codex.www.ads-software.com/Function_Reference/query_posts#Usage_Note

for instance:

global $wp_query;
$args = array_merge( $wp_query->query, array( 'category__not_in' => array(11) ) );
query_posts( $args );

Ok, that makes sense, thanks for sharing it. I think I’m getting hung up on exactly where that need to go. I’ve tried putting it right before the loop starts as suggested in the third link you provided. Do you have any suggestion where it needs to go? Thanks in advance!

Do you have any suggestion where it needs to go?

as you said already, before the start of the loop; before the if( have_posts() ) : while( have_posts() ) : ....... code

Ahhhhh, perfect! Thank you so much for your help! Just what I needed.