What is sociology and what is the meaning of the word 'logy' in sociology

Sociology is the study of the development of our society in the aspects of interactions, relationships, and day-to-day behaviors.

Socio-logy: Socio means cultural or social. Ology means the study of. Together they give the meaning; the study of cultures/societies.

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.