A-plus
1 of 2noun
ˈā-ˈpləs 
: a grade assigned by a teacher or examiner rating a student's work as highest in quality
She got an A-plus on her report.
graduating with an A-plus average
—often used figuratively … my flossing technique received an A-plus from the hygienist.
Charles W. Whalen, Washington Post, 27 May 1979Legislators get an A-plus for procrastination. — Larry Penner, Times-Union (Albany, New York), 19 Apr. 2010
Charles W. Whalen, Washington Post, 27 May 1979Legislators get an A-plus for procrastination. — Larry Penner, Times-Union (Albany, New York), 19 Apr. 2010A-plus
2 of 2adjective
ˈā-ˈpləs
: having or receiving a grade of A-plus (see A–plus ) because of academic excellence
an A-plus student
also : excellent, superior
It has an A-plus crescent beach where the only footprints will be your own. Sid Moody, Associated Press, 27 Apr. 1980
Sid Moody, Associated Press, 27 Apr. 1980 Instead of rolling your eyes when a blustery coworker crows about the A-plus job he's doing at work, take notes. Martha Fay, Real Simple, November 2001
Martha Fay, Real Simple, November 2001 
Word History
First Known Use
Noun
1913, in the meaning defined above
Adjective
1927, in the meaning defined above
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