What word, Spanish for "armed force", names a fleet of warships?

In 1920s slang a flapper was a young woman. What was a "flivver"? A flat piece of limestone from Texas's Blanco River was used to set a 1994 world record of 38 in which activity? Which word means both a flaw and to switch sides? What is a fleet of small ships, such as sailing vessels, called? Fleetwood and Winnebago are best known for making what kind of vehicle? Which NFL team uses a fleur-de-lis as its logo? In fencing, which flexible weapon has a four-sided blade and a blunt point? A flock of which birds famously returns to San Juan Capistrano each spring?