This is the 10874th most frequent Swedish word.
lillebror
"Little brother."
Here, 'lillebror' is used to refer to the speaker's younger brother, showing family relations.
Min lillebror älskar att spela fotboll.
My younger brother loves to play football.
In this sentence, 'lillebror' is mentioned without a possessive pronoun, commonly used in informal speech to refer to a known family member as a subject.
Lillebror är alltid så nyfiken när jag läser böcker.
Little brother is always so curious when I read books.
'Lillebror' is used in its direct relation form, preceded by a possessive pronoun 'min'.