their(употр. атрибутивно; ср. theirs); theirs(this book is theirs – это их книга; theirs is a good house – их дом хорош); them(people, animals, things etc. already spoken about, being pointed out etc. • Let's invite them to dinner; What will you do with them); of them; these(The limitations of classical selenodesy... are discussed and methods for overcoming these are described. I. Havkin); theirs(this book is theirs – это их книга; a person, thing etc. belonging to them • The child is theirs; a friend of theirs (= one of their friends))