Definition of words:
Old age; Old age: You are not very expensive, but you are very old.
Detailed:
Old age:
Older.
Old age:
(1) honorific, refers to the age of an old man (over 60 years old): he has reached the advanced age of more than 80 years old and is still full of energy.
② Advanced age (as far as general standards are concerned): elderly pregnant women.
Part of speech analysis:
●? No, it's not.
◎ Old age, seventy or eighty years old: dying. People in their eighties.
●? It's just a matter of time.
◎ Old age, eighty or ninety years old: old woman. People in their eighties.
◎ confused.
Extension:
■? form words
Old age, old age, old age, old age, old age, old age, old age, old age.