long suit long·suit uncommon noun 1. in a hand, the suit having the most cards Synonymslong suit 2. an asset of special worth or utility “cooking is his forte” Synonymsfortestrong suitlong suitmetierspecialtyspecialitystrong pointstrength Antonymsweak point Related words Broader terms assetcollection Narrower terms green thumbstrong suit Parts hand WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.