The word "beem" does not exist in standard English vocabulary. However, the word "beam" does. Synonyms for "beam" are plentiful, offering a wide range of words with similar meanings. For example, one might use "bar," "plank," or "rafter" as a synonym for "beam" when referring to wooden construction elements. In a scientific or technical context, the word "ray" may be used to refer to light or energy, while "stream" might apply to sound or particles. Additionally, "gleam," "glow," and "radiance" can serve as synonyms for "beam" when discussing light or illumination.