1 condiment, relish, seasoning, flavour(ing); herb:
Much of the purpose of early explorers was to search for spices.
2 zest, spiciness, piquancy, tang, pungency, bite, sharpness, poignancy, gusto, excitement, seasoning, dash, élan, colour, life, vigour, interest, stimulation, stimulant, spirit, Colloq vim, zip, pep, kick, pizazz, punch, ginger, pepper:
A holiday in the Bahamas will add a little spice to our lives.
3 season, flavour:
Highly spiced food does not agree with many people.
4 Often, spice up. enliven, inspirit, stimulate, invigorate:
The proprietor felt that the new editor should try to spice up the magazine.