booty
Treasure.
bounty
Reward or payment, usually from a government, for the capture of a criminal, specifically a pirate.
coffer
A chest in which treasure is usually kept.
doubloon
A Spanish gold coin.
King's Shilling
Given to recruits of the Royal Navy in the 18th century, “to take a King’s Shilling” was to enter service as a sailor or soldier. There is a legend that says recruiters would slip a coin into their victim’s drink to con them into accepting service. Glass-bottomed tankards were designed to allow the drinker to see if a coin was in the bottom before they accepted a drink.
loot
Stolen goods; money.
motherload
The largest amount of booty discovered.
pieces of eight
Spanish silver coins worth one peso or eight reales, sometimes literally cut into eight pieces, each worth one real.
plunder
To take booty; rob.
real
Formerly a Spanish coin and monetary unit.