Term: grindstone: a revolving stone shaped like a disk; used to grind or sharpen or polish edge tools
Broader: sharpener: any implement that is used to make something (an edge or a point) sharper | Unrelated: scarlet lychnis: Eurasian garden perennial having scarlet flowers in dense terminal heads
Broader: sharpener: any implement that is used to make something (an edge or a point) sharper | Unrelated: epitome: a brief abstract (as of an article or book)
Broader: sharpener: any implement that is used to make something (an edge or a point) sharper | Unrelated: ceremoniousness: a ceremonial manner
Broader: sharpener: any implement that is used to make something (an edge or a point) sharper | Unrelated: plant genus: a genus of plants
Broader: sharpener: any implement that is used to make something (an edge or a point) sharper | Unrelated: infantile autism: a rare but serious syndrome of childhood characterized by withdrawal and lack of social responsiveness or interest in others and serious linguistic deficits
Broader: sharpener: any implement that is used to make something (an edge or a point) sharper | Unrelated: secularization: the activity of changing something (art or education or society or morality etc.) so it is no longer under the control or influence of religion
Broader: sharpener: any implement that is used to make something (an edge or a point) sharper | Unrelated: sawtooth: a serration on a saw blade
Broader: sharpener: any implement that is used to make something (an edge or a point) sharper | Unrelated: yogi: one who practices yoga and has achieved a high level of spiritual insight
Broader: sharpener: any implement that is used to make something (an edge or a point) sharper | Unrelated: aircraft landing: landing an aircraft
Broader: sharpener: any implement that is used to make something (an edge or a point) sharper | Unrelated: dust contamination: state of being contaminated with dust