Thunderbirds is a powerful word that is often associated with strength and majesty. However, if you are searching for synonyms for this word, there are a plethora of options to choose from. Some of the alternatives that you could use include "jet fighters," "aeroplanes," "warplanes," "military aircraft," "bird of prey," "eagles," "falcons," "hawks," and "vultures." All of these words evoke a sense of power, might, and speed, which are qualities that are often associated with Thunderbirds. Whether you are writing an essay, a news article, or simply looking for some creative ways to describe these awe-inspiring creatures, these synonyms will come in handy.