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riser

American  
[rahy-zer] / ˈraɪ zər /

noun

risers plural
  1. a person who rises, especially from bed.

    to be an early riser.

  2. the vertical face of a stair step.

  3. any of a group of long boards or narrow platforms that can be combined in stepwise fashion.

    The choir stood on a horseshoe of risers behind the orchestra.

  4. a vertical pipe, duct, or conduit.

  5. Metallurgy. a chamber or enlarged opening at the top of a mold for allowing air to escape or adding extra metal.

  6. Nautical.

    1. a heavy strake of planking in the vicinity of the garboard strake in a wooden vessel.

    2. rising.


riser British  
/ ˈraɪzə /

noun

  1. a person who rises, esp from bed

    an early riser

  2. the vertical part of a stair or step

  3. a vertical pipe, esp one within a building

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of riser

Middle English word dating back to 1350–1400; see origin at rise, -er 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Rowsell climbs onto the drum riser and steals Amey's bumblebee sunglasses while screaming into a megaphone.

From BBC Jul. 6, 2026

Whether you're an early riser or a night owl will dictate what appeals more to you.

From BBC Jun. 13, 2026

“I got up on the riser, pulled the piano bench back a little bit — and it went over the side and I fell over backwards,” Troup confessed in a later interview.

From Los Angeles Times May 12, 2026

Workday stock was the S&P 500’s biggest riser, up 7.2%, while the iShares Expanded Tech-Software Sector exchanged-traded fund climbed 1.6%.

From Barron's Mar. 4, 2026

He climbed onto the riser where the Negro women stood and headed directly to the youngest one there—a girl about her own age.

From "Copper Sun" by Sharon M. Draper

It was the fourth of five sea days on the way from Honolulu to Vancouver, British Columbia, and I was in the pool with a dozen other early risers.

From The Wall Street Journal Jun. 3, 2026

The orchestra in its pit, with no risers, inhabited the hall.

From Los Angeles Times May 28, 2026

This year's biggest risers are Nik Storonsky, co-founder of fintech company Revolut, and trading entrepreneur Alex Gerko.

From BBC May 15, 2026

Among the notable software risers were Palo Alto Networks, Intuit, and ADP.

From Barron's Mar. 26, 2026

We parade behind her to a row reserved for us in the audience, and the choir heads straight to the risers to sing first.

From "Muffled" by Jennifer Gennari

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