noun
pensioner (female), retiree (female)
B1
Pensionistin means female pensioner or female retiree. Feminine noun in German (die Pensionistin), plural Pensionistinnen. Denotes a woman receiving a pension or retired. Regular declension; dative plural den Pensionistinnen. Masculine form is Pensionist. Used in formal contexts to refer to someone who receives a state or private pension.
Examples
Die Pensionistin geht jeden Tag spazieren.
The female pensioner goes for a walk every day.
Die Pensionistin geht gerne im Park spazieren.
The pensioner likes to walk in the park.
Als Pensionistin hat sie mehr Zeit für ihre Hobbys.
As a retiree she has more time for her hobbies.
Details
Mnemonics
picture a woman happily receiving a pension notice
pensionist + -in -> female pensioner (like many feminine nouns in German)
die — imagine a Mrs. receiving her pension (female)
Notes
Feminine counterpart of 'Pensionist'. Plural is 'Pensionistinnen'.