a type of adverb that shows the logical relation between the phrase or clause that it modifies and a preceding one: e.g., (1) I sent the letter; it never arrived, however. (2) The battery died; therefore the car wouldn ‘t start.
An adverb expressing a relationship between main clauses, which can be joined by a semi-colon. Unlike a conjunction, a conjunctive adverb need not come between the main clauses: I worked hard; nevertheless I did no better than before. I worked hard; I nevertheless did no better than before. There are entries for these letters
A conjunctive adverb is an adverb that connects two clauses. Conjunctive adverbs show cause and effect, sequence, contrast, comparison, or other relationships. They usually appear between independent clauses or sentences, but may join a dependent clause to a main (independent) clause.