Conceptual and Lexical Relationship Browser

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Synonym Sets (synsets)

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  • Type a search word into the Next Word text box and then press Enter or click on the Search button.
  • The left hand frame contains an example of the output you see when you enter a search word. The search word was food.
  • The search result contains the synsets for different parts of speech i.e. the different meanings of a word.
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Wordnet is a lexical database of English, in which, nouns, verbs, adjectives and adverbs are grouped together into sets of synonyms (synsets). Synsets are linked by conceptual and lexical relations. There are a total of 117,659 synsets in wordnet 3.0, each expressing a distinct concept. Six types of relationship are found in Wordnet.

Hypernyms (Hyponyms)

Defines an IS-A relationship between nouns. For example:

  • Honda IS-A Car (honda is a hyponym of car)
  • Car IS-A Vehicle (car is a hyponym of vehicle)
The reverse relationship is expressed as:
  • Car is a hypernym of Honda
  • Vehicle is a hypernym of Car

Meronyms (Holonyms)

Defines a PART-OF (member) relationship between nouns. The opposite of a meronym (part) is a holonym (the name of the whole that contains the part). For example:

  • tire PART-OF car (tire is a meronym of car)
  • steering wheel PART-OF car (steering wheel is a meronym of car)
The reverse relationship is expressed as:
  • car contains a tire (car is a holonym of tire)
  • car contains a steering wheel (car is a holonym of steering wheel)


A verb expressing a specific way of doing something - a WAY-OF relationship. There is no known opposite to troponym. For example:

  • stroll WAY-OF walk (stroll is a troponym of walk)
  • amble WAY-OF walk (amble is a troponym of walk)
  • walk WAY-OF move (walk is a troponym of move)
The reverse relationship is expressed as:
  • move is accomplished by walking
  • walk is accomplished by strolling
  • walk is accomplished by ambling

Antonyms (synonyms)

Defines polar opposites between adjectives.


Adjectives that are derived from Nouns. For example:

  • criminal pertains to crime

Coordinate Terms

Nouns that share hypernyms with other nouns. Nouns and verbs that share the same hyponym. A car is a type of vehicle and a truck is a type of vehicle. Car and truck are therefore coordinate terms.