There are several synonyms for the word "roach". Some of these include cockroach, water bug, palmetto bug, and beetle. Cockroaches are common household pests known for their ability to survive in harsh conditions. Water bugs, on the other hand, are aquatic insects that live in ponds and streams. Palmetto bugs are a type of cockroach found in the southern United States, while beetles are a diverse group of insects that come in many shapes and sizes. No matter the synonym used, it is important to take measures to prevent infestations and quickly address any issues if they do occur.