This is the 8363rd most frequent Japanese word.
心得
"心得" means "knowledge, understanding, or know-how."
In this sentence, the word '心得' refers to an individual's experience or understanding of a subject—in this case, cooking.
彼は料理の心得があります。
He has knowledge of cooking.
'心得' here signifies practical knowledge or expertise applied to address and overcome issues or challenges.
心得を活かして問題を解決しました。
I used my understanding to solve the problem.
In this usage, '心得' denotes prior knowledge or familiarity required to efficiently perform tasks or responsibilities in a new job.