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Merriam-Webster's Word of the Day for November 10, 2006 is:
crackerjack \CRACK-er-jack\ adjective
: of striking ability or excellence
Examples:
Allison's brother, a crackerjack computer technician, was able to quickly fix the problems with her laptop.
Did you know?
The late 19th-century pairing of "crack" and "jack" to form "crackerjack" topped off a long history for those words. "Cracker" is an elongation of "crack," an adjective meaning "expert" or "superior" that dates from 1793. Prior to that, "crack" was a noun meaning "something superior" and a verb meaning "to boast." (The verb use evolved from the expression "to crack a boast," which came from the sense of "crack" meaning "to make a loud sharp sound.") "Jack" has been used for "man" since the mid-1500s, as in "jack-of-all-trades." "Crackerjack" entered English first as a noun referring to "a person or thing of marked excellence," then as an adjective. You may also know "Cracker Jack" as a snack of candied popcorn and peanuts. That trademarked name dates from the 1890s.
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