Is however a conjunction?

The comma is important because however is a conjunctive adverb that can be used in two different ways: it can join main clauses and it can modify a clause. If you use however at the beginning of a sentence and don't insert a comma, however means “in whatever manner,” “to whatever extent,” or “no matter how.”Feb 1, 2013 read more

"However" is a conjunction and an adverb. It depends on how you are using it in a sentence. In your sentence it is an adverb, but it is also considered poor form to start a sentence with however. read more

A CONJUNCTION is a word that connects or joins together words, phrases, clauses, or sentences. There are two kinds of conjunctions, a primary class of COORDINATING conjunctions and a secondary class called SUBORDINATING or SUBORDINATE conjunctions. read more

But it is wrong to use ‘however’ between two parts of a sentence that make sense by themselves. I look forward to this time of year, however today I have goosebumps is grammatically incorrect. You can use ‘but’ here instead, because it is a conjunction (or joining word). ‘However’ is not a conjunction when it means ‘but’. read more