welcome mat noun
plural welcome mats
plural welcome mats
Learner's definition of WELCOME MAT
[count] US
: a small rug that is placed by the door of a person's house, apartment, etc., for guests to wipe their feet on before entering（放在门口的）地垫，门毡
put/roll/throw out the welcome mat
: to welcome someone in a warm and friendly way盛情接待；热忱欢迎