yen(noun, verb) noun1. a yearning for something or to do somethingSimilar word(s): hankeringDefinition categories: feeling, hungriness, longing, yearning2. the basic unit of money in Japan; equal to 100 senDefinition categories: quantity verb1. have a desire for something or someone who is not presentSimilar word(s): ache, languish, pine, yearnDefinition categories: emotion, hanker, long, yearn