This is part of the difference between series.
Two commonly confused words are though and although. Here’s the difference between the two.
Though
When used as a conjunction, though and although are interchangeable. However, though can also be an adverb. Here’s an example of though as an adverb.
Sure, I’ll go with you to the concert; I’m not a fan of the band though.
Although
As mentioned above, although is a conjunction and is virtually identical in this usage with though. Here is an example where although or though can be used.
Although he’s kind of short, he runs quite quickly.
Though he’s kind of short, he runs quite quickly.
If you’re joining two independent clauses (“He is kind of short.” and “He runs quite quickly.”, for example), you can use although or though. It’s strictly a style issue. That being said, although is a bit more formal than though, so keep your audience in mind when choosing which to use.
Which words do you confuse? Let me know in the comments below.