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These words are two sides of the same coin: ways to get more or to make something go further. One side is about saving; the other is about spending less.

Warning! These similar sounding words have very different meanings. To prescribe is to recommend and to proscribe is to forbid. One little letter makes a big difference.

Bridal is related to a bride, but bridle refers to a part of a horse's harness and what you do with it. Although the words sound the same, they run in different circles unless you're getting a horse ready for her wedding.

Both have to do with right and wrong, but amoral means having no sense of either, like a fish, but the evil immoral describes someone who knows the difference, doesn't care, and says "mwah ha ha" while twirling a mustache.

They sounds similar and both have exes, but extant means “still here,” and extent refers to “the range of something.” People get them mixed up to a certain extent.

A correlation is exactly what it sounds like: a co-relation, or relationship — like the correlation between early birds waking up and the sun rising. But corollary is more like a consequence, like the corollary of the rooster crowing because you smacked it in the beak. Both words love the math lab but can hang with the rest of us, too.