1 and although are used as conjunctions, but although cannot be used with but.
2. although, though; Although; But; However.
Conj. although; Although; In any case; But ...
Synonym: conj.while though asalbeit
Root affix: al+though: conj. Although all, all+through though.
Bilingual examples:
1、He notched up five kills? although? Fighter Command downrated them to four probables.
He shot down five enemy planes, and the fighter command said it was most likely four.
2、Although? their individual biographies are different, both are motivated by a similar ambition.
Although their life paths are different, their motivation comes from similar ambitions.
3、He says he has the team strip,? although? I've never seen him wear it.
He said he had a jersey, but I never saw him wear it.
4、Although? women do more childcare than men, feminists should beware of naturalizing that fact.
Although women take care of children more than men, feminists should beware of taking it as a natural thing.
5、It's interesting work,? although? quite a lot of it is elementary.
This is an interesting job, although much of it is simple.