Fifth-wheel meaning

An additional wheel carried on a four-wheeled vehicle as a spare.
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An extra and unnecessary person or thing.
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A wheel or portion of a wheel placed horizontally over the forward axle of a carriage to provide support and stability during turns.
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A similar device over the rear axle or axles of a tractor or pickup truck, serving as a coupling for a semitrailer.
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An unnecessary or superfluous person or thing.
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A horizontal wheel-like structure placed over the front axle of a carriage or wagon to support it on turns.
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A similar structure on the rear of the cab of a tractor-trailer, serving as a coupling for attaching the trailer.
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A type of trailer hitch, which consists of a horseshoe-shaped plate on a multi-directional pivot, with a locking pin to couple with the kingpin of a truck trailer.
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A very large truck trailer; an 18-wheeler.
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A very large trailer that is towed with a pickup truck.
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(idiomatic) Anything superfluous or unnecessary.

As the third person along on their date, I felt like a fifth wheel.

I felt like a fifth wheel when they started giggling and making out during dinner.

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Sentence Examples

  • I feel like a fifth wheel here, and there is so much to do at home.

  • Over the years, the company developed a reputation for producing top quality travel trailers and fifth wheel campers that meet the needs of families of all sizes.

  • Units available for rentals include various styles of Class A and Class C motor homes, fifth wheel trailers, and standard travel trailers.

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Words near fifth-wheel in the Dictionary