Forte (noun)

1. A person's strong point or area of expertise.
2. Something that one is particularly good at or excels in.

Origin:

From the italian word "forte" meaning strong or powerful.

Examples:

1. Cooking is her forte.
2. Math is not my forte.
3. Playing the piano is his forte.
4. She was known for her forte in public speaking.
5. His forte is in troubleshooting computer systems.