Master
Expert
noun
A person who has "attained" is someone who knows much. They are a master or expert, obviously.
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.
彼はカメラの達人です。
He is a master of the camera.
彼女はウチの会社の達人プログラマーです。
She is a programming guru for our company.
ウチの母親の料理は、料理の達人レベルに美味しいです。
My mother's cooking is delicious to the level of a culinary master.
An update is needed before you can continue but you have more than one WaniKani tab open.
Finish up what ever you are doing on the other tab(s), then close them to continue.
The update will complete automatically once the other tab(s) are closed.