knowledge; understanding; know-how
Practical knowledge or understanding gained through experience, often about how to behave or handle a situation. Common in phrases like 心得がある (have some knowledge of) or 心得顔 (knowing look).
He has some knowledge of tea ceremony.
I have a basic understanding of business etiquette.
rules; regulations; guidelines
Often used in official or organizational contexts for a set of rules or guidelines to be followed, e.g., 執務心得 (office regulations), 服務心得 (service rules).
See also: 執務心得 (しつむこころえ)
We distributed the office regulations to new employees.
This school has strict rules for students.
Used as a suffix attached to a role or title to indicate a deputy or acting position, e.g., 委員心得 (acting committee member), 校長心得 (acting principal).
He ran the school as acting principal.
Since the chairperson was absent, the acting committee member served as a substitute.
He has some knowledge of cooking.
New employees must follow the service regulations.
He was appointed acting section chief.
hard to understand; hard to accept