Abstract
It is proposed that concepts contain two types of properties. Context- independent properties are activated by the word for a concept on all occasions. The activation of these properties is unaffected by contextual relevance. Context- dependent properties are not activated by the respective word independent of context. Rather, these properties are activated only by relevant contact in which the word appears. Context- independent properties form the care meanings of words, whereas context- dependent properties are a source of semantic encoding variability.