The term 'NANA STAR ANNA' is composed of four words, each with four letters. The first word, 'NANA', is a term of endearment for a grandmother or an elderly woman. The second word, 'STAR', is a celestial body that emits light and heat. The third word, 'ANNA', is a female given name of Hebrew origin. The fourth word, 'STEN', is a Swedish occupational surname derived from the Old Norse word for stone. Together, these four words form a phrase that can be interpreted as a tribute to a grandmother who is like a STAR in the sky, shining brightly and providing warmth and comfort.