The term DEN DIN is a combination of two words, 'DEN' and 'DIN'. DEN is a noun meaning a small, secluded room or area used for sleeping, studying, or other activities. DIN is a verb meaning to make a loud, unpleasant noise. Together, the term DEN DIN can be interpreted as a loud, unpleasant noise coming from a small, secluded area. The crossword solutions for this term are ROAR (4 letters) and ROARS (5 letters). ROAR is a verb meaning to make a loud, deep sound, usually associated with a lion or other large animal. ROARS is the present tense form of the verb, indicating that the sound is ongoing. Therefore, the term DEN DIN can be interpreted as a loud, deep sound coming from a small, secluded area.