ploughshare
/ˈplaʊˌʃɛr/
noun
- The sharp, cutting blade of a plow that cuts through the soil.
- He sharpened the ploughshare on a grinding wheel to make it cut more easily.
- The farmer replaced the old ploughshare before spring planting.
- A dull ploughshare makes it hard to turn over heavy clay soil.
Synonyms