Suffering means feeling pain or sadness. It can also mean going through a hard time or a bad experience.
Suffering is a very hard feeling. It can make people feel very bad and unhappy.
Examples:
She is suffering from a headache.
The little dog is suffering because it is sick.
The suffering of the people in the war is very sad.
The suffering cat just wants to sleep.
The suffering of the old tree made everyone sad.
The suffering in the sad movie made me cry.