/ Thesaurus / P Synonyms of pennines Find synonyms for: Noun1. Pennines, Pennine Chainusage: a system of hills in Britain that extend from the Scottish border in the north to the Trent River in the south; forms the watershed for English riversWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: respite Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language