A source domain is a concept that is metaphorically used to provide the means of understanding another concept.
(English)
A verticality schema, as a source domain, is metaphorically applied to the concept of amount in the more-as-up and less-as-down metaphors expressed in the following sentences:
This page is an extract from the LinguaLinks Library. Version 5.0 published on CD-ROM by SIL International, 2003.