The term 'connective word' refers to words that are used to link ideas or sentences together. The two crossword solutions for this term are 'AND' AND 'NOR', both of which are three-letter words. 'AND' is a coordinating conjunction, which is used to join two independent clauses together. 'NOR' is a correlative conjunction, which is used to join two negative statements together. Both of these words are used to create a connection between two ideas or sentences.