Sense relation: Sense relation refers to the relation between two or more words regarding their meanings. For example, antonymy – opposite meaning (light/dark) and synonymy – same meaning (beautiful/pretty).
The ‘Zero’ article: Nouns are generally associated with an article (a, an or the). However, sometimes no article is added to the noun. This is called the ‘zero’ article. For example, i) I hate butter, ii) She speaks Russian, iii) I go to work by car and iv) What noisy street.
Rule: The ‘zero’ article is used i) when we talk about things in general, ii) with uncountable nouns and plural, iii) before names of countries, languages, streets, etc. and iv) in exclamations: what + uncountable noun.