This is the 1692nd most frequent Arabic word.
سقطت
"سقطت" means "she/it fell."
In this sentence, the word 'سقطت' is used to describe a natural fall of an object, in this case, a leaf.
سقطت الورقة من الشجرة.
The leaf fell from the tree.
Here, 'سقطت' describes a crash or fall of an airplane into the sea, indicating a sudden and unwanted event.
سقطت الطائرة في البحر.
The airplane fell into the sea.
The word 'سقطت' is metaphorically used to indicate failing or not succeeding in an endeavor, in this case, an examination.