although

 
Pronunciation: /ɔːlˈðəʊ, ɒl-/

conjunction

  • in spite of the fact that; even though: although the sun was shining it wasn’t that warm although small, the room has a spacious feel
  • however; but: he says he has the team shirt, although I’ve never seen him wear it

Origin:

Middle English: from all (as an adverb) + though

The form although can be replaced by though, the only difference being that although tends to be more formal than though. Some uses of though are not interchangeable with although, however: for example, adverbial uses ( it was nice of him to phone, though) and uses in phrases with ‘as’ or ‘even’ ( she doesn’t look as though she’s listening).