Look for synonyms for “Old people” without looking at Dictionary.
You could also try to break them into a group of explanatory terms like 
ü 
Elders
ü 
Senior citizens
ü 
Old aged individuals
ü 
Elderly people 
ü 
Aged people 
ü 
Aged individuals
ü 
People who are aged etc. 
The objective is to prepare yourself for a situation in
which you would need to infuse different words for a single term in your
writing parts I and II in IELTS written module. 
 
 
 


 
