Stengel is a German word that refers to the stem or stalk of a plant. When searching for synonyms for stengel, one can use other German words like Stiel or Schaft. In English, stem is the most common synonym for stengel, but other alternatives include stalk, trunk, shoot, branch, and twig. The context of the sentence will determine which synonym is most appropriate to use. For example, the word trunk would be more suited for a tree, while a shoot or twig would be better suited for a smaller plant. Using synonyms helps to diversify language use and makes writing more engaging and informative.