阿拉霍洞開

在神秘事務司的戰鬥中，食死徒用這個咒語打開了赫敏用咒語封住的門。並不是任何一扇門都能被這個咒語打開，神秘事務司中就存在着它無法開啓的屋子。

哈利波特第一部中赫敏用這道咒語打開了四樓的裏面有三頭狗路威守護着的屋子的門。

Escaping Filch

‘STUDENTS OUT OF BED!’ Peeves bellowed. ‘STUDENTS OUT OF BED DOWN THE CHARMS CORRIDOR!’

Ducking under Peeves they ran for their lives, right to the end of the corridor, where they slammed into a door – and it was locked.

‘This is it,’ moaned Ron, as they pushed helplessly at the door. ‘We’re done for! This is the end!’

They could hear footsteps, Filch running as fast as he could towards Peeves’ shouts.

‘Oh, move over,’ Hermione snarled. She grabbed Harry’s wand, tapped the lock and whispered, ‘Alohomora!’

The lock clicked and the door swung open – they piled through it, shut it quickly and pressed their ears against it, listening.

——Extract from Harry Potter and the Philosopher's Stone，by J.K. Rowling ^[2] 

Breaking Sirius free

‘Alohomora!’ The window sprang open. ‘How – how?’ said Black weakly, staring at the Hippogriff. ^[3]