Old person and Retired person

Old person noun - An elderly person.

Retired person and old person are semantically related in senior citizen topic. In some cases you can use "Retired person" instead a noun phrase "Old person", when it comes to topics like someone of advanced years.

Retired person noun - Someone who has retired from active working.

Old person and retired person are semantically related in someone of advanced years topic. You can use "Old person" instead a noun phrase "Retired person".