agree ~ with ... — to have the same opinion as someone or something; to be in harmony with

a father points enthusiastically at a movie poster while smiling broadly at his daughter. His daughter nods eagerly with the same excited expression, pointing at the exact same poster. They both lean toward each other with matching grins, clearly thinking the same thing about their movie choice. The father gives a thumbs up while the daughter mirrors his gesture perfectly. Other family members in the background smile as they watch the two reach their shared decision. two people having the same opinion and being in complete harmony with each other