Fruity
A huge category with a lot of range; you have to ask are these dried fruits, compote, fresh picked or past their best? It's a easy range of aromas to look for, and relatively universal. A drop of water to the whisky might help some of the more shy, exotic fruits emerge from the glass.
Citric
Oranges, tangerine, zest, kiwi, nectarines, love hearts, lemon
Fresh fruit
Apples, pears, pear drops, peaches, apricots, fruit salad, soft fruit
Cooked fruit
Stewed apples, marmalade, jam, barley sugar, candied fruits, rum-toft
Dried fruit
Raisins, figs, apricots, prunes, mixed peel, fruit cake, mince pies
Solvent
Nail varnish remover, bubble gum, brylcreem, acid drops, turps, paint