Grammar mistakes that even the smartest people make

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Stupid Grammar Mistakes That Smart People Make

Ready for a grammar lesson? We're not talking about basic mistakes like screwing up 'their,' 'they're' and 'there.' Instead, we're looking at the phrases and words that can trip up even the best of us.

How many of these do you know, and how many took you by surprise? Share your thoughts in the comments (we swear on an AP Style Guide that we won't judge).

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Grammar mistakes
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Grammar mistakes that even the smartest people make
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1) Prostrate vs Prostate
This may sound ridiculous, but people seem to get tongue-tied quite often -- and it could be awkward if you screw up around a group of doctors. Prostrate is defined as "lying stretched out on the ground with one's face downward," while prostate is part of a male's reproductive system.

2) "First-come, first-serve"
If you're saying it like it's written above, you're wrong. It's actually "first-come, first-served." The incorrect way indicates that the people who arrive first will be doing the serving -- which restaurants probably won't like.

3) "I could care less"
To convey that there's no way you could be less concerned, the correct phrase is "I couldn't care less." We've pretty much all messed this one up, though it makes sense when you think about it.

Check out these grammar and spelling flubs:
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Signs with awful grammar
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Grammar mistakes that even the smartest people make

Oh grandma. You need to work on your grammar.

Picture by: clang boom steam/Flickr

Looks like there's no technology or dictionaries to be found in this town.

Picture by: Sammy0716/Flickr

This sign is not exactly on a ROLL with grammar. (Get it?)

This unintentionally funny sign was found outside a Chinese restaurant in Gumbet, South West Turkey.

Picture by: Adam Alexander/Alamy

Don't you mean you have toe rings, Akela Flats?

Picture by: chrissam42/Flickr

That darne Duane Reade!

Picture by: dhyatt/Flickr

ladie's

It's in-convenient that you think that's how inconvenience is spelled ...

Picture by: Mags_cat/Flickr

No handicapped restrooms, but plenty of unnecessary apostrophes in the visitor's center.

Picture by: FatBusinessman/Flickr

You were (sorta) so close!

Picture by: somethingstartedcrazy/Flickr

Silly barbecue never listened in English class.

Picture by: Mick Sinclair / Alamy

Picture by: Bob Caddick / Alamy
Picture by: Eric Farrelly / Alamy
Picture by: lars hammar/Flickr
Picture by: the Other michael/Flickr
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4) "Wet your appetite"
If you spell that phrase like it's shown above, you're basically asking someone to spray you down with water. Did you know that when this phrase appears online, it is wrong 56 percent of the time? The correct terminology is whet, which means to sharpen or stimulate.

5) Waiting with "baited breath"
It's not bait, as in bait a fish. It's actually bated, which is an adjective meaning suspense. Will you get this right in the future? We'll wait with bated breath to find out.

6)"For all intensive purposes"
The correct turn of phrase is "for all intents and purposes" ... though perhaps your intent is intense?

7)"Peaked my interest"
Though peak is the correct spelling for the top of a mountain, it's not right when talking about something that caught your attention. It's actually "piqued my interest," meaning to arouse interest.

One more! Don't let the guy below fool you: Grammar has an 'a,' not an 'e.'
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Kelsey Grammer
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Grammar mistakes that even the smartest people make
Yes, this is really just a gallery of Kelsey Grammer photos -- but you'll never forget the spelling again!
NEW YORK, NY - JUNE 25: (L-R) Lorenzo Di Bonaventura, Jack Reynor, Kelsey Grammer, Bingbing Li, Michael Bay, Mark Wahlberg, Nicola Peltz, Stanley Tucci, Titus Welliver, and Steven Spielberg attend the New York Premiere of 'Transformers: Age Of Extinction' at the Ziegfeld Theatre on June 25, 2014 in New York City. (Photo by Larry Busacca/Getty Images for Paramount)
NEW YORK, NY - JUNE 25: Kelsey Grammer attends the New York Premiere of 'Transformers: Age Of Extinction' at the Ziegfeld Theatre on June 25, 2014 in New York City. (Photo by Larry Busacca/Getty Images for Paramount)
NEW YORK, NY - JUNE 25: (L-R)) Jude Grammer, Kelsey Grammer, and Mason Grammer attend the 'Transformers: Age Of Extinction' premiere at Ziegfeld Theater on June 25, 2014 in New York City. (Photo by D Dipasupil/FilmMagic)
HONG KONG - JUNE 20: (CHINA OUT) (L - R) Stanley Tucci, Li Bingbing, Kelsey Grammer, Mark Wahlberg, Director Michael Bay, Nicola Peltz, Lorenzo di Bonaventura and Jack Reynor pose at the photo call for the worldwide premiere screening of 'Transformers: Age of Extinction' at Ritz-Carlton Hotel on June 20, 2014 in Hong Kong, Hong Kong. (Photo by ChinaFotoPress/ChinaFotoPress via Getty Images)
HONG KONG - JUNE 20: Kelsey Grammer attends the press conference for the worldwide premiere screening of 'Transformers: Age of Extinction' on June 20, 2014 in Hong Kong, Hong Kong. (Photo by Callaghan Walsh/Getty Images for Paramount)
HONG KONG - JUNE 19: Kelsey Grammer poses with fans at the worldwide premiere screening of 'Transformers: Age of Extinction'at the on June 19, 2014 in Hong Kong, Hong Kong. (Photo by Callaghan Walsh/Getty Images for Paramount)
CANNES, FRANCE - MAY 18: US actor Kelsey Grammer (L) and US actor Harrison Ford hold signs reading 'Bring Back Our Girls' as they arrive for the screening of the film 'The Homesman' at the 67th Cannes Film Festival in Cannes, France, on May 18, 2014. (Photo by Mustafa Yalcin/Anadolu Agency/Getty Images)
CANNES, FRANCE - MAY 18: (L-R) Ronda Rousey, Wesley Snipes, Sylvester Stallone and Kelsey Grammer attend'The Expendables 3' premiere during the 67th Annual Cannes Film Festival on May 18, 2014 in Cannes, France. (Photo by Foc Kan/FilmMagic)
CANNES, FRANCE - MAY 18: (Top L-R) Actors Dolph Lundgren, Mel Gibson, director Patrick Hughes, Sylvester Stallone, Harrison Ford, Wesley Snipes, Kellan Lutz, Ronda Rousey, (Front L-R) actors Kelsey Grammer, Glen Powell, Jason Statham, Antonio Banderas, Victor Ortiz and Randy Couture attend 'The Expendables 3' premiere during the 67th Annual Cannes Film Festival on May 18, 2014 in Cannes, France. (Photo by Traverso/L'Oreal/Getty Images)
CANNES, FRANCE - MAY 18: Kayte Walsh (L) and Kelsey Grammer attend 'The Expendables 3' private dinner and party at Gotha Night Club at Palm Beach on May 18, 2014 in Cannes, France. (Photo by David M. Benett/Getty Images for Millennium Films)
CANNES, FRANCE - MAY 18: Arnold Schwarzenegger and Kelsey Grammer attends 'Expendables 3' Photocall at the 67th Annual Cannes Film Festival on May 18, 2014 in Cannes, France. (Photo by Danny Martindale/WireImage)
WEST HOLLYWOOD, CA - MARCH 02: Kelsey Grammer and Kayte Walsh attend the 2014 Vanity Fair Oscar Party hosted by Graydon Carter on March 2, 2014 in West Hollywood, California. (Photo by Anthony Harvey/Getty Images)
NEW YORK, NY - SEPTEMBER 01: Actor Kelsey Grammer (R) and wife Kayte Walsh (L) attend Day Seven of the 2013 US Open at the USTA Billie Jean King National Tennis Center on September 1, 2013 in New York City. (Photo by Jaime L. Mikle/Getty Images for the USTA)
WEST HOLLYWOOD, CA - APRIL 09: Actor Kelsey Grammer attends the premiere of Magnolia Pictures' 'To The Wonder' at Pacific Design Center on April 9, 2013 in West Hollywood, California. (Photo by Jason Merritt/Getty Images)
NEW YORK, NY - APRIL 02: Spencer Karen Grammer , Kelsey Grammer's oldest daughter joins Blair Underwood who's reprising the ttle role in the Nbc-Tv pilot 'Ironside' on April 2, 2013 in New York City. (Photo by Aby Baker/Getty Images)
NEW YORK, NY - APRIL 01: Actress Spencer Karen Grammer, Kelsey Grammer's oldest daughter, filming opposite Blair Underwood in CBS-TV's remake of 'Ironside' on April 1, 2013 in New York City. (Photo by Aby Baker/Getty Images)
LOS ANGELES, CA - FEBRUARY 09: Actor Kelsey Grammer arrives at the 55th Annual GRAMMY Awards Pre-GRAMMY Gala and Salute to Industry Icons honoring L.A. Reid held at The Beverly Hilton on February 9, 2013 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
LOS ANGELES, CA - FEBRUARY 02: Actor Kelsey Grammer (R) and Kayte Walsh attends the 65th Annual Directors Guild Of America Awards at Ray Dolby Ballroom at Hollywood & Highland on February 2, 2013 in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)
TODAY -- Pictured: (l-r) Kathie Lee Gifford, Kelsey Grammer and Hoda Kotb appear on NBC News' 'Today' show -- (Photo by: Peter Kramer/NBC/NBC NewsWire via Getty Images)
THE TONIGHT SHOW WITH JAY LENO -- Episode 4298 -- Pictured: (l-r) Actor Kelsey Grammer during an interview with host Jay Leno on August 14, 2012 -- (Photo by: Paul Drinkwater/NBC/NBCU Photo Bank via Getty Images)
FRASIER -- 'Sweet Dream' Episode 24 -- Pictured: (l-r) Peri Gilpin as Roz Doyle, Kelsey Grammer as Dr. Frasier Crane, Tom McGowan as Kenny Daly -- Photo by: Gale M. Adler/NBC/NBCU Photo Bank
LAS VEGAS - JUNE 2: (EXCLUSIVE COVERAGE) Kelsey Grammer and Kayte Grammer renew their wedding vows at the Little Church of the West after one year of marriage on June 2, 2012 in Las Vegas, Nevada. (Photo by Denise Truscello/WireImage)
LOS ANGELES, CA - JANUARY 13: Actress Kayte Walsh (L) and actor Kelsey Grammer arrive at W Magazine And Dom Perignon Celebrate It's Best Performances Issue And The Golden Globe Awards at the Chateau Marmont on January 13, 2012 in Los Angeles, California. (Photo by Michael Buckner/Getty Images)
HOLLYWOOD, CA - OCTOBER 06: Actress Spencer Grammer (L) and actor Kelsey Grammer attend the after party for the STARZ Los Angeles Premiere Event for Original Series 'Boss' Starring Kelsey Grammer at the Arclight Theatres on October 6, 2011 in Hollywood, California. (Photo by Michael Buckner/Getty Images For STARZ)
HOLLYWOOD, CA - OCTOBER 06: (L-R) Kayte Grammer, actor Kelsey Grammer and actress Spencer Grammer arrive at Starz series 'Boss' season premiere at ArcLight Cinemas on October 6, 2011 in Hollywood, California. (Photo by Chelsea Lauren/WireImage)
NEW YORK, NY - JUNE 12: Kelsey Grammer (L) and wife Kayte Walsh attend the 65th Annual Tony Awards at the Beacon Theatre on June 12, 2011 in New York City. (Photo by D Dipasupil/FilmMagic)
NEW YORK, NY - FEBRUARY 25: Kelsey Grammer and Kayte Walsh arrive at their wedding reception at The Plaza Hotel on February 25, 2011 in New York City. (Photo by D Dipasupil/Getty Images)
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