special skill; specialty; forte
Refers to a skill or ability that one is particularly good at, often used in self-introductions or when describing someone's strong point.
私の特技は料理です。
My special skill is cooking.
彼の特技は人の名前をすぐに覚えることだ。
His forte is remembering people's names quickly.
He has a special skill: cooking.
My special skill is playing the guitar.
She became an interpreter, making use of her language skills.
I ended up showing off my special skill at the party.