This is the 3921st most frequent Arabic word.
انضمت
"Joined" or "affiliated."
The word 'انضمت' here means 'joined' and it's used to indicate Sarah's action of becoming a member of the new team.
انضمت سارة إلى الفريق الجديد قبل أسبوع.
Sarah joined the new team a week ago.
In this sentence, 'انضمت' illustrates the action of a country becoming a member of a union.
في العام الماضي، انضمت دولة جديدة إلى الاتحاد.
Last year, a new country joined the union.
Here, 'انضمت' describes Laila's action of coming together with her friends at a specific event.