Armstrong

UK: /ˈɑːmˌstrɒŋ/ US: (ärm′strông′)

WordReference Random House Unabridged Dictionary of American English © 2026

Arm•strong  (ärm′strông′), n. 

1. Biographical (Daniel) Louis ("Satchmo''), 1900–71, U.S. jazz trumpeter and bandleader.
2. Biographical Edwin Howard, 1890–1954, U.S. electrical engineer and inventor: developed frequency modulation.
3. Place Names, Biographical Henry (Henry Jackson), 1912–88, U.S. boxer: world featherweight champion 1937–38;
   world lightweight champion 1938–39;
   world welterweight champion 1938–40.
4. Biographical Neil A., born 1930, U.S. astronaut: first person to walk on the moon, July 20, 1969.

Collins Concise English Dictionary © HarperCollins Publishers::

Armstrong / ˈɑːmˌstrɒŋ/ noun

1. Edwin Howard. 1890–1954, US electrical engineer; invented the superheterodyne radio receiver and the FM radio
2. Gillian. born 1950, Australian film director; her films include My Brilliant Career (1978), Little Women (1994), and Charlotte Gray (2001)
3. Lance. born 1971, US cyclist, winner of seven Tour de France titles, 1999–2005; stripped of the titles in 2012 and banned for life, having been found to have used banned substances
4. (Daniel) Louis, known as Satchmo. 1900–71, US jazz trumpeter, bandleader, and singer
5. Neil (Alden). 1930–2012, US astronaut; commanded Apollo 11 on the first manned lunar landing during which he became the first person to set foot on the moon on July 20, 1969