Lomas is a term that refers to hills, specifically the rolling hills that are often found in the countryside. However, depending on the region or language, there are many other words that can be used to refer to this kind of terrain. In Spanish, for example, people often use the word "colina" or "cerro" to describe a hill or small mountain. In English, other synonyms for lomas might include words like knoll, rise, or mound. These terms all describe a similar type of terrain, and can be used to describe anything from small hills to larger, more mountainous regions.