A more thorough explanation:

Definition:

At law means in accordance with the law or legal system. It refers to actions or decisions that are made based on legal principles and procedures.

Examples:

• A person can sue another person at law for breach of contract.
• The judge made a ruling at law based on the evidence presented in court.

Explanation: The examples illustrate how the term at law is used to describe legal actions and decisions. In the first example, a person is taking legal action against another person for breaking a contract. In the second example, a judge is making a decision based on the legal principles and evidence presented in court. Both examples show how the term at law is used to describe actions and decisions that are made in accordance with the law.