His heart was pounding until he believed that he must suffocate.
Marguerite's horror mounted until it threatened to suffocate her.
He began to suffocate with chagrin, and hurried his steps in sheer distress.
I pant for a plantation which shall shelter and not suffocate.
Certainly this sand is going to try its best to suffocate us.
As it was, ere he had time to suffocate, ...