ˈ ̷ ̷ˌ ̷ ̷ noun
1. : an apparatus similar to that formerly used in ringing a church bell that is used in learning bell ringing or for bodily exercise
2. : a weight (as of wood or metal) that consists of two identical spheres connected by a short bar serving as a handle and that is used usually in pairs for calisthenic exercise
3. : something shaped like a calisthenic dumbbell
4. : one that is dull and stupid : dummy
if we don't give him a shove the poor dumbbell never will propose — Sinclair Lewis
every time I opened the chicken-house door … the dumbbells would fly up in the air — Betty MacDonald