finny adjective 3noun 1forms 3 adjective3 •Having one or more fins.The silent fisher […] waits the finny prize (Book XII) — 1726 •Abounding in fishes.Cheerful at morn, he wakes from short repose, Breathes the keen air, and carols as he goes; With patient angle trolls the finny deep, Or drives his venturous ploughshare to the steep — 1730 •Resembling a fin. noun1 •(UK, slang) A five-pound (£5) note; the sum of five pounds.I passed a good many in drapers’ shops, also at tailors’ shops. I never tried jewellers, they’re reckoned too good judges. The notes were all finnies, (5l. notes), and a good imitation. — 1851 formsfinnies · finnier · finniest
