noun A group, set, or series of ten .mw-parser-output .defdate{font-size:smaller}, particularly:
a decade of soldiers
noun A period of ten years , particularly such a period beginning with a year ending in 0 and ending with a year ending in 9.
The 1960s was a turbulent decade.
noun A period of ten days, particularly those in the ancient Egyptian, Coptic, and French Revolutionary calendars.
noun A work in ten parts or books, particularly such divisions of Livy's History of Rome.
noun A series of prayers counted on a rosary, typically consisting of an Our Father, followed by ten Hail Marys, and concluding with a Glory Be and sometimes the Fatima Prayer.
noun Any of the sets of ten sequential braille characters with predictable patterns.
noun A set of ten electronic devices used to represent digits.
noun A set of resistors, capacitors, etc. connected so as to provide even increments between one and ten times a base electrical resistance.