mortal sin
— Noun
– English
~ an unpardonable sin entailing a total loss of grace; "theologians list seven mortal sins"
Mount Sinai
— Noun
– English
~ a mountain peak in the southern Sinai Peninsula (7,500 feet high); it is believed to be the peak on which Moses received the Ten Commandments
Meryta sinclairii
— Noun
– English
~ small roundheaded New Zealand tree having large resinous leaves and panicles of green-white flowers