篤

cordial; serious, earnest; devoted

Kanji 1666

Using 篤, you can say all of this: "It is rumored that the prime minister is critically ill," "It was rebuilt and dedicated by a benefactor," "It is rare to find a student as diligent as she is," and "The bullet penetrated his chest, leaving him in critical condition." While learning about such usage, you can find out about torii design and a man with "backroom" influence over many Japanese leaders.