心得

Word: 心得
Reading: こころえ
Level: N1
Part of speech: noun
Meaning: knowledge, rules, precepts
Example: 社会人としての基本的な心得を身につけておくべきだ。 You should acquire the basic knowledge and etiquette required of a working adult.
Confused with: 理解 (understanding) - 理解 is comprehension, while 心得 implies practical knowledge or rules to keep in mind.