The word "seined" has a few synonyms, each having a different connotation. For instance, "fished" is similar in meaning to seining, but it's less specific as it implies any method of removing fish from water. "Netted" is another synonym that refers to catching fish using a net but is not limited to the method of seining. "Trapped" and "snared" capture the essence of seining, but are more often used in the context of hunting animals. Other synonyms with a similar meaning to seining include "dragging," "hauling," and "dredging," as they all involve pulling something from a body of water, but again, they do not have the same specificity as seining.