The term "yea-high" is used to describe a height that is about the same as a person's hand when extended straight upward. Some synonyms for this term include "hand-high," "palm-high," or "fist-high." These terms are often used to describe the height of plants, objects, or even people who are shorter in stature. Other similar phrases include "ankle-high," "shin-high," and "knee-high," which all describe objects or plants based on their distance from the ground. In general, these terms help to provide a clear and concise way to describe the relative height of an object or person compared to other things around them.