doormat

UK: /ˈdɔː^rmæt/ US: /ˈdɔrˌmæt/ ,(dôr′mat′, dōr′-)

WordReference Random House Learner's Dictionary of American English © 2025

door•mat /ˈdɔrˌmæt/   n. [countable]

1. a mat placed before a door for people to wipe their shoes on before entering.
2. a person who allows others to take advantage of him or her.

WordReference Random House Unabridged Dictionary of American English © 2025

door•mat  (dôr′mat′, dōr′-), n. 

1. a mat, usually placed before a door or other entrance, for people arriving to wipe their shoes on before entering.
2. a person who is the habitual object of abuse or humiliation by another.

• door + mat¹ 1655–65

Collins Concise English Dictionary © HarperCollins Publishers::

doormat / ˈdɔːˌmæt/ noun

1. a mat, placed at the entrance to a building, for wiping dirt from shoes
2. a person who offers little resistance to ill-treatment by others