marginal
noun/ˈmɑːdʒɪnl/
/ˈmɑːrdʒɪnl/
(British English)- a seat in a parliament, on a local council, etc. that was won by a very small number of votes
- a Labour marginal
Word Originlate 16th cent.: from medieval Latin marginalis, from margo, margin- ‘edge’.
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marginal