Blood
The blood radical and blood are the same in looks as well as in meaning.
There'll be some bad blood between us if you're not studying your radicals, especially when they're the same like this kanji!
けつ
ち
None
To remember the reading けつ, we use the word "ketsup." The perfect mix of ketchup and catsup! The radical is technically blood, but you know that radical is just a drop (of blood) on a plate. So, you ask yourself... Is that really blood on the plate? Could it be? You decide to take a gamble and lick it off. When you taste it, it's definitely not blood. No, it's ketsup (けつ).
Feel the relief that you didn't just lick up someone's blood. Taste the ketsup taste, too. It's pretty good. Not quite ketchup, but not quite catsup. Yum!