Meaning relationships include synonymy, homonymy, autonymy, and entailment. Synonymy applies to words having the same meaning, but the degree of synonymy depends on the amount of overlap in meaning. Homonyms are often involved in lexical ambiguity. Antonyms are words that have opposite meanings. They are not contradictory but contrary relationships.
Entailment is a logical relationship that occurs when one meaning entails another.
For example, if I have a Porsche, I have a car. If I have a stallion , I have a horse. Give examples of entailment in English or another language you know.