Hierarchy Tree
Broader categories (hypernyms)
More specific words (hyponyms)
Understanding Word Hierarchy
- ↑ Hypernyms (blue) are broader categories — “roller” is a type of these.
- ↓ Hyponyms (purple) are more specific — these are types of “roller”.
- → Click any word to explore its own hierarchy and navigate the vocabulary tree.
- → Use in writing — swap a vague word for a precise hyponym to make your writing more specific.
Frequently Asked Questions
What category does "roller" belong to?
"Roller" is a kind of wave, cylinder, grounder, ground ball, domestic pigeon, coraciiform bird, moving ridge, mechanical device. These are its hypernyms — broader categories that "roller" falls under according to WordNet.
What are more specific types of "roller"?
More specific types of "roller" (hyponyms) include: sprocket, platen, ground roller, paint roller, garden roller, coracias garrulus, and more. These are all subtypes that fall under the category of "roller".
What is a hypernym?
A hypernym is a word whose meaning includes the meaning of a more specific word. For example, "vehicle" is a hypernym of "car" — every car is a vehicle, but not every vehicle is a car.
What is a hyponym?
A hyponym is a word that is more specific than a general term. For example, "oak" and "pine" are hyponyms of "tree". Understanding hyponyms helps you choose more precise language in writing.