united states air force(n = noun.group) air force, u. s. air force, us air force, usaf - the airforce of the United States of America; the agency that defends the United States through control and exploitation of air and space;
is a kind of agency, authority, bureau, federal agency, government agency, office
is a part of defense, defense department, department of defense, dod, united states department of defense
has parts: afrl, air force research laboratory, united states air force academy, us air force academy, acc, air combat command, afspc, air force space command, air national guard, ang, afisr, air force intelligence surveillance and reconnaissance, air force isr

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united nations day, united nations educational scientific and cultural, united nations international children's emergency, united nations office for drug control and crime p, united nations secretariat, united republic of tanzania, united self-defense force of colombia, united self-defense group of colombia, united society of believers in christ's second app, united states, united states air force academy, united states army, united states army criminal investigation laborato, united states army rangers, united states army special forces, united states attorney general, united states border patrol, united states cabinet, united states civil war, united states coast guard, united states code, united states congress, united states constitution, united states customary system, united states department of defense, united states department of state, united states dollar, united states dry unit, united states fish and wildlife service, united states government, united states government accounting office, united states government printing office, united states house of representatives, united states intelligence agency, united states intelligence community, united states liquid unit, united states marine corps, united states marines, united states marshals service, united states military academy, united states mint, united states national library of medicine, united states naval academy, united states navy, united states of america, united states post office, united states postal inspection service, united states postal service, united states president, united states public health service, united states secret service, united states senate, united states supreme court, united states trade representative, united states treasury, united states virgin islands, united states waters, up in the air, us air force, us air force academy, vice president of the united states, vital force, walk on air, walking on air, war between the states, weak force, western united states, work force