yen

When referring to the Japanese currency, the word is typically treated as an invariant noun, meaning the singular and plural forms are identical. It is uncommon to see the word pluralized as "yens" in professional financial contexts, though it may occasionally appear in casual speech.

In its sense as a longing or craving, the word carries a nostalgic or impulsive tone. It is less common than "craving" or "urge" and often appears in literary or slightly dated contexts to describe a sudden, specific whim or a deep-seated yearning for a particular object or experience.