From Longman Dictionary of Contemporary Englishbase something on/upon something phrasal verbCOME FROM/ORIGINATEto use something as the thing from which something else is developed → basis Their relationship was based upon mutual respect. an economy based on farming → base→ See Verb table
Examples from the Corpus
base on/upon • What are you basing this on?• The problem with any such guesstimate is that, of course, we are basing our calculations on a statistical sample of one.• Teachers can now base assessed investigations on data collected by real scientists, such as pollution levels, available on the internet.• Rather than base my lifestyle on magazine alerts and warnings, I choose to continue with my double-breasted blazer criterion.• Critics of the market economy base their position on the following points.• The new men were not aping the landed gentry; they were basing their careers upon the infrastructure provided by urban Britain.• Price: Base price on the manual 540i is $ 49,900.• Another approach to advertising expenditure is to base it on what the competition is spending.From Longman Business Dictionarybase something on/upon something phrasal verb [transitive] to use something as the thing from which something else can be developedWhat data are you basing your projections on?an economy based on farming → base→ See Verb table 