1.  armstrong(n = noun.person) neil armstrong - United States astronaut; the first man to set foot on the Moon (July 20, 1969) (1930-);
is a kind of astronaut, cosmonaut, spaceman

2.  armstrong(n = noun.person) louis armstrong, satchmo - United States pioneering jazz trumpeter and bandleader (1900-1971);
is a kind of jazz musician, jazzman, cornetist, trumpeter

george armstrong custer, homer armstrong thompson, ivor armstrong richards, louis armstrong, neil armstrong