What does the T and C mean on a pregnancy test?

Paige • 23- UK. Our little pea due November2017 ❤🌈🌞
I'm a newbie to ttc so confused with all the words etc I know that ttc is trying to conceive and bfp is big fat positive but what is the t and c on tests? and what is some others? I know c is a control line but what do they mean ect?