Old man and Old woman

Old man noun - A male human parent.

Old woman and old man are semantically related in elder topic. In some cases you can use "Old woman" instead a noun phrase "Old man", when it comes to topics like senior citizen.

Old woman noun - A woman who is old.

Old man and old woman are semantically related in elder topic. You can use "Old man" instead a noun phrase "Old woman", if it concerns topics such as senior citizen.