in costume
idiom
: wearing a costume
If all the actors are in costume, we're ready to begin.
The waiters were all in ancient Roman costume.
Examples of in costume in a Sentence
Recent Examples on the Web
Attendees, many in costume and one man with his face painted bright green packed the stands, cheering for their champions.
—
Sharon Bernstein, Sacbee.com, 28 Sep. 2025
The findings show that 51 percent of adults who celebrate Halloween plan to dress in costume this year, with 32 percent dressing their pets in costume.
—Lisa Lockwood, Footwear News, 26 Sep. 2025
Production began on the series in July, and HBO celebrated with the first picture of Dominic McLaughlin, who has inherited the role from Daniel Radcliffe, in costume as the titular wizard.
—Julia Moore, PEOPLE, 23 Sep. 2025
Both children and parents are encouraged to visit in costume for non-scary activities and animal viewing.
—Jim Higgins, jsonline.com, 19 Sep. 2025
See All Example Sentences for in costume
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Sharon Bernstein, Sacbee.com, 28 Sep. 2025
The findings show that 51 percent of adults who celebrate Halloween plan to dress in costume this year, with 32 percent dressing their pets in costume.
—Lisa Lockwood, Footwear News, 26 Sep. 2025
Production began on the series in July, and HBO celebrated with the first picture of Dominic McLaughlin, who has inherited the role from Daniel Radcliffe, in costume as the titular wizard.
—Julia Moore, PEOPLE, 23 Sep. 2025
Both children and parents are encouraged to visit in costume for non-scary activities and animal viewing.
—Jim Higgins, jsonline.com, 19 Sep. 2025
See All Example Sentences for in costume
Cite this Entry
“In costume.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20costume. Accessed 8 Oct. 2025.
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