Submitted by György Chityil ... on Fri, 01/19/2018 - 19:32 Hierarchy: NounDescription: {{context|tax}} The principle that taxes should vary according to an individual's level of wealth or income.Ngram: ability-to-payNgram Text: ability-to-paySource: WiktionaryIssue: 0Wiktionary tag: taxNgram Count: 1