Definitions of becket:

• noun:   (nautical) a short line with an eye at one end and a knot at the other; used to secure loose items on a ship
• noun:   (Roman Catholic Church) archbishop of Canterbury from 1162 to 1170; murdered following his opposition to Henry II concerning Henry's attempts to control the clergy (1118-1170)
• name:  A surname (very rare: popularity rank in the U.S.: #44588)