For example, the lines "some words / die / caged- / they're difficult / to translate" (35-40). These lines allude to speaking and languages through the word "translate". The first word that comes to mind when this word is read is something related to speaking, learning a language, and so on. Translation also allows people of different languages to understand each other. This, once again, ties back to the idea that words may be different but they can still bring us all together.
To add to the idea of words being universal, the author includes the lines "for them / there are / no borders" (16-18). This applies to birds, as they can fly basically anywhere they wish, without passports or customs, and because birds are being compared to words, the same applies to words. They can go anywhere, and be spoken by anyone. They are