armband
noun
arm·band ˈärm-ˌband 
: a band worn around the arm
especially : a band worn around the arm for identification or in mourning
Example Sentences
Recent Examples on the Web Fernandes has been serving as Man United's stand-in captain since manager Erik ten Hag decided to drop Harry Maguire to the bench, and the Portugal midfielder seems to be relishing wearing the armband. 
Mattias KarÉn, ajc, 27 Aug. 2022 Photos of an East Cobb Middle School student wearing a swastika armband and giving the salute also surfaced online this year, according to WAGA. al, 20 July 2022 Again, Hazel and Cha Cha are pretty fairly depicted from the comic to the Netflix series (apart from the whole Nazi armband thing going on here). Evan Romano, Men's Health, 8 June 2022 One Phoenix man who pleaded guilty to a misdemeanor charge related to his actions at the U.S. Capitol, Micajah Joel Jackson, told The Arizona Republic in a 2021 interview that he was given an orange armband by the Proud Boys of Arizona. The Arizona Republic, 9 June 2022 Hazel is pretty perfectly and pristinely adapted from the comic to the screen—but whatever is going on with that armband didn't quite back it to Netflix. Evan Romano, Men's Health, 8 June 2022 Tatum — wearing a purple-and-gold armband bearing the number 24 of Los Angeles Lakers Hall of Famer Kobe Bryant, his favorite player — had lost two East finals in his young career. Tim Reynolds, Chicago Tribune, 30 May 2022 Then Tatum took the court wearing a purple armband, in honor of Bryant, and tried his best to emulate him. Adam Himmelsbach, BostonGlobe.com, 30 May 2022 The cloth used to bind the man's hands appeared to be a white armband. Byreuters, ABC News, 5 Apr. 2022 See More
Mattias KarÉn, ajc, 27 Aug. 2022 Photos of an East Cobb Middle School student wearing a swastika armband and giving the salute also surfaced online this year, according to WAGA. al, 20 July 2022 Again, Hazel and Cha Cha are pretty fairly depicted from the comic to the Netflix series (apart from the whole Nazi armband thing going on here). Evan Romano, Men's Health, 8 June 2022 One Phoenix man who pleaded guilty to a misdemeanor charge related to his actions at the U.S. Capitol, Micajah Joel Jackson, told The Arizona Republic in a 2021 interview that he was given an orange armband by the Proud Boys of Arizona. The Arizona Republic, 9 June 2022 Hazel is pretty perfectly and pristinely adapted from the comic to the screen—but whatever is going on with that armband didn't quite back it to Netflix. Evan Romano, Men's Health, 8 June 2022 Tatum — wearing a purple-and-gold armband bearing the number 24 of Los Angeles Lakers Hall of Famer Kobe Bryant, his favorite player — had lost two East finals in his young career. Tim Reynolds, Chicago Tribune, 30 May 2022 Then Tatum took the court wearing a purple armband, in honor of Bryant, and tried his best to emulate him. Adam Himmelsbach, BostonGlobe.com, 30 May 2022 The cloth used to bind the man's hands appeared to be a white armband. Byreuters, ABC News, 5 Apr. 2022 See More Word History
Etymology
arm entry 1 + band entry 1
First Known Use
1738, in the meaning defined above