This week, we answer a question about three similar sounding terms.Our listener Suri writes:Hi, I want to know the meaning of "through," "throughout" and "go through."Hello Suri, Let me begin by talking about "through" and "throughout."Both can be used as prepositions or adverbs.Today, I will explain their uses as prepositions.Both words can relate to space or time, depending on how they are used.I will talk about space first."Through" means moving from one side, or end, to another side, or end of something.For example, you can say, "The train went through the tunnel."That means it went in one side of the tunnel and out the other side."Through" can also mean within a place or within a piece of land, air, or something else.For example, you can say, "I walked through the park."