I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
scimetar scimitar simitar scimiter cemetery symmetry smiter smatter smuttier summitry zoometry summiteer
scimetar geometry dimeter zoometry symmetry simitar scimitar ohmmeter maumetry cometary geometer meter biometry biometer ammeter metro metre diameter yawmeter