Skill, Ability
noun
Your skill and ability are kind of similar things. That's why this word means either or. Your skill ability is your skill and ability.
ぎのう
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
私は日本で技能実習生として働いています。
I am working as a technical intern in Japan.
バイクの技能試験は一発合格でした。
I passed the motorcycle skills test in one go.
リーディング、ライティング、リスニング、スピーキングの四つの技能をバランスよく勉強しなくてはいけません。
You need to study all four skills - reading, writing, listening, and speaking - in a balanced way.