In Tamil grammar, concrete nouns or உண்மை பெயர்ச்சொல் are words that physically exist in reality. You can visibly see, touch, smell, taste, or hear them. They form a significant part of sentences as they create a real-life description. From objects like “புத்தகம்” (book) to places like “பள்ளி” (school), and things in nature, for instance, “மலர்” (flower) – all of these are concrete nouns used in everyday language.