bite

ginger, punch, spice, tang

raucousness, severeness, severity, shrillness, virulence, vitriol

cattiness, maliciousness

pointedness, thorniness

collop, medallion, noisette

nosh, snack

appetizer, canapé, hors d'oeuvre

bit, chew, crumb, dab, dribble, driblet, fleck, hint, mote, nubbin, particle, pinch, scrap, scruple, shred, smidgen (also smidgeon), snip, snippet, speck, spot, sprinkling, suspicion, tittle, touch, trace

dash, drop

lap, lick

gulp, swallow, swig

briskness, crispness

coldness, frigidity, frigidness, frostiness, gelidity, iciness, wintriness

cold, freeze, snap