doormat
US /ˈdɔːr.mæt/
UK /ˈdɔːr.mæt/

1.
a mat placed at the entrance to a house, where people can wipe their shoes
:
•
Please wipe your feet on the doormat before entering.
•
The new doormat has a welcoming message.
2.
a person who allows others to treat them badly without complaining or defending themselves
:
•
Don't be a doormat; stand up for yourself!
•
She was tired of being treated like a doormat by her colleagues.