A sharp, distinctive flavor or smell; piquancy. The lemonade had a pleasant tang that refreshed us on the hot day.
A projecting part of an object, especially the part of a tool or weapon that is inserted into a handle. The tang of the knife was securely fastened into the wooden handle.
Any of several coarse brown seaweeds of the genus Fucus; kelp. The rocks were slippery with tang at low tide.