The paper presents a lexical analysis algorithm based on combining senses of words for computing subsumption relations between entities in ontology matching.It firstly finds the suitable sense of each word and extends it;then formally defines the representation of an entity notion based on semantic elements;finally
infers subsumption relations between all possible pair of entities
one from each of two ontologies.The experiments
over four real in use ontologies
show that the algorithm helps to increase the recall of the system.