thick and thin

Переводы
в горе и в радости
They have been friends through thick and thin.
Они были друзьями в горе и в радости.
Определения
The phrase 'thick and thin' refers to all kinds of situations, both good and bad, easy and difficult. It is often used in the expression 'through thick and thin,' meaning to support or stay with someone regardless of the circumstances.
Слова
thick

прилагательное
толстый
thin

прилагательное
тонкий