but

Apart from, except (for), excluding.

Everyone but Father left early.

I like everything but that.

Outside of.

Away but the hoose and tell me whae's there.

Merely, only, just, no more than

Christmas comes but once a year, so we can but wait till then.

If they kill us, we shall but die.

Though, however.

I'll have to go home early but.

"Supposin' the chap ain't dead, but?" Regan persisted.

However, although, nevertheless, on the other hand (introducing a clause contrary to prior belief or in contrast with the preceding clause or sentence).

She is very old but still attractive.

She’s welcomed them but been rude to us.

On the contrary, rather (as a regular adversative conjunction, introducing a word or clause in contrast or contradiction with the preceding negative clause or sentence).

I am not rich but [I am] poor.  Not John but Peter went there.

It’s not so much that we don’t wanna go, but I just haven’t time.

Used at the beginning of a sentence to express opposition to a remark.

But I never said you could do that!

In reality, I apprehend every amorous widow on the stage would run the hazard of being condemned as a servile imitation of Dido, but that happily very few of our play-house critics understand enough of Latin to read Virgil.

Except that (introducing a subordinate clause which qualifies a negative statement); also, (archaic) with omission of the subject of the subordinate clause, acting as a negative relative, "except one that", "except such that".

I cannot but feel offended.

My kid does nothing but watch TV all day.

Used to link an interjection to the following remark as an intensifier.

Wow! But that's amazing!

Oh, the engineers would see him sitting in the shade / Strumming with the rhythm that the drivers made / People passing by, they would stop and say / "Oh, my, but that little country boy could play"