I. noun Date: 1745 a reception given at one's home, II. phrasal relaxed and comfortable ; at ease , in harmony with the surroundings, on familiar ground ; knowledgeable
AT HOME
Meaning of AT HOME in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012