
ihr (Pl.) is part of Goethe A1 vocabulary.
ihr (Pl.)
their
/iːɐ/Examples — ihr (Pl.) in a sentence
Das sind ihre Kinder.
Those are their children.
Ich mag ihre neue Wohnung.
I like their new apartment.
How to remember it
'EER' sounds like 'EACH'. 'Each one of THEIR possessions' is what you're thinking about.