due dilligence is the act and being percise or careful in order to fufuil a legal requirement.
* Im kind of confused becuse of how you worded it but I think youre aking about dilligence now? And not due dilligence? *
You can be more dilligent in class by taking your time and putting more effort into your action/work
There are 3 words i can think of that would work. Foil, Boil, Coil
You should stay more focus so ya and mabye c if your super stuck