The word "though" is a conjunction used to introduce a contrast or exception. It often connects two ideas, indicating that one idea is true despite the other. For example, in the sentence "I like ice cream, though I am lactose intolerant," it shows that the speaker enjoys ice cream even though they have a dietary restriction. "Though" can also be used at the end of a sentence for emphasis. For instance, saying "It was a tough game, it was fun, though" highlights that despite the difficulty, the experience was enjoyable. This usage adds a nuanced layer to the statement, reinforcing the contrast.