Best way to categorize products for search by customers in Magento 1
I am helping to start an online e-commerce site in Magento 1.9. We are trying to create a system to categorize products in which a customer could search for a broad-term item like "seashell lamps" and products which are seashell themed come up in search. What would be the best way to implement this? Currently my plan is to add relevant keywords into the meta keywords field and have that attribute (meta_keywords) searchable through the quick search bar. Is there a more efficient ways to do this?