The word "ant who sings" may seem like a strange phrase, but there are several synonyms for this concept. One possible option would be "musical ant," which brings a bit of whimsy to the description. Another option could be "singing ant," which is a more straightforward description of the insect's activity. Finally, "melodic ant" could be used to emphasize the pleasant and harmonious aspect of the ant's singing. While not a common phrase, the concept of an ant who sings can inspire creative and playful language choices.