The definition of an institution is an established custom or practice, or a group of people that was formed for a specific reason or a building that houses the group of people. Marriage is an example of a cultural institution.
Contextual targeting is a type of targeting on the Google Display Network in which you select specific keywords or topics and then allow AdWords to identify websites that are a good fit for your keywords and targets.
Target audience. A target audience is the intended audience or readership of a publication, advertisement, or other message. In marketing and advertising, it is a particular group of consumers within the predetermined target market, identified as the targets or recipients for a particular advertisement or message.