Ploughshare
/ˈplaʊʃer/
Definition 1 of 1
Pro Tip 1/3Agricultural Context
Used often in agriculture-related discussions or historical texts about farming. 
Museum exhibits might feature an old ploughshare to illustrate traditional farming methods.
Pro Tip 2/3Metaphorical Use
Sometimes metaphorically used to represent peace, as in 'beating swords into ploughshares'. 
The peace treaty was a chance for both nations to turn their ploughshares into instruments of growth.
Pro Tip 3/3Technical Term
Considered a technical term; may be unfamiliar in everyday conversation. 
Attending the farming workshop, I finally understood what a ploughshare does.