Vocabulary before hunting
A word search can rehearse recognition; it cannot teach meaning by itself.
Introduce each term aloud and in context before learners scan for its letter sequence. Ask for a student-friendly definition, example, image or related word. That preparation turns the puzzle into another encounter with known vocabulary instead of an isolated visual search.
After a word is found, have the learner use it: explain a relationship, label a diagram, complete a sentence or sort it into a category. The puzzle then acts as a low-friction retrieval prompt rather than the end of the lesson.