“What is the difference between ALTHOUGH and HOWEVER?
ALTHOUGH is a subordinating conjunction.
HOWEVER is a conjunctive adverb.
ALTHOUGH combines two clauses and makes a complex sentence.
HOWEVER facilitates a smooth transition between two ideas.
ALTHOUGH is synonymous to though and in spite of the fact.
HOWEVER is synonymous to but or nevertheless.
ALTHOUGH is not followed by a comma.
HOWEVER is Always followed by a comma (as a conjunctive adverb