although和though都有虽然的意思,两者的意思很接近,区别也不是很大,一般情况下可以通用.两者的区别是though可以用在句末,但是although不可以,即：Though,but not although can be used at the end of a sentence.
看个例子：
She knew all her friends would be there.She didn't want to go,though.
而且though除了虽然,还有别的意思,比如可以表示转折,意思是“但是”.
even though是“即使”的意思,等同与“even if”