Bismillahir rahmanir Rahim,

Peace be upon you, and Allah's mercy and blessings,

The opening words in Arabic are usually "Bismillahirrahmanirrahim" which means "In the name of Allah, Most Gracious, Most Merciful". These words are often used before starting something, such as reading the Koran, praying, or starting other activities.

In addition, there are some common opening words in Arabic, including:

Alhamdulillah: meaning "All praise be to Allah", often used to express gratitude.
Assalamu'alaikum: means "Peace be upon you", often used to greet and greet.
Subhanallah: meaning "Glory be to Allah", often used to express admiration or admiration for the greatness of Allah.
This is the opening of vocabulary in Arabic, I hope this is useful.

May the peace, mercy, and blessings of Allah be with you too.