To yield assent; to accord; to acquiesce, agree, consent; to adapt oneself, to conform.
"After much deliberation, she finally complied with the council's request to relocate the historic monument back to its original site."
In plain English: To comply means to do what someone asks you to do or follow the rules they set.
"The company refused to comply with the new safety regulations."
Usage: Use comply to describe an action taken in response to a request or rule, usually implying obedience rather than simple agreement. It is correct to say you complied with the instructions, not that you complied with the idea of them.
Comply comes from the Latin word complēre, meaning "to finish" or "fulfill," which entered English through Italian and Spanish. The term originally described completing a task before evolving to mean obeying an order or requirement.