The crossword solution for the term 'Orbit Competitor' is TRIDENT, which is a seven-letter word. TRIDENT is a missile system developed by the United Kingdom's Royal Navy and is used as a nuclear deterrent. It is also the name of the three-pronged spear carried by the Greek god Poseidon. TRIDENT is the main competitor to the United States' Minuteman III intercontinental ballistic missile system, which is used for strategic nuclear deterrence.