institution is larger

institution means 1.An organization founded and united for a specific purpose 2.An establishment consisting of a building or complex of buildings where an organization for the promotion of some cause is situated 3.A custom that for a long time has been an important feature of some group or society the institution of marriage"; "the institution of slavery"; "he had become an institution in the theatre" 4.The act of starting something for the first time; introducing something new 5.A hospital for mentally incompetent or unbalanced person while Organization refers to: 1.A group of people who work together 2.An organized structure for arranging or classifying "the facts were familiar but it was in the organization of them that he was original" 3.The persons (or committees or departments etc.) whomake up a body for the purpose of administering something 4.The act of organizing a business or an activity related to a business "he was brought in to supervise the organization of a new department" 5.An ordered manner; orderliness by virtue of being methodical and well organized "his compulsive organization was not an endearing quality" 6.The activity or result of distributing or disposing persons or things properly or methodically "his organization of the work force was very efficient" 7.The act of forming or establishing something "he still remembers the organization of the club" cowboy...

institution : a large and important organization, such as a university or bank a medical/educational/financial institution Oxford and Cambridge universities are internationally respected institutions. organization : a group of people who work together in a structured way for a shared purpose the World Health Organization The article was about the international aid organizations. http://www.visualthesaurus.com/landing/?ad=cdo&utm_medium=default&utm_campaign=VT&utm_source=cdo&word=organization