Yes, Alohomora is known as a spell, specifically the Unlocking Spell.
Based on the provided information, Alohomora, properly known as The Unlocking Charm, is indeed also referred to as a spell. It is commonly known by the alternate name, the Unlocking Spell.
This magical incantation serves as a charm that unlocked objects such as doors or windows. It's a very useful tool for witches and wizards when encountering locked barriers.
Furthermore, Alohomora is notable for its ability to open doors secured by the Locking Spell (Colloportus), effectively acting as its counter-charm. Due to its function in bypassing locks, it sometimes earns the nickname "Thief's Friend".
So, while technically classified as a charm, its function and common usage lead it to be widely recognized and named as the Unlocking Spell.
