There is a seven letter word in the English language that contains ten words without rearranging any of its letters, "therein": the, there, he, in, rein, her, here, ere, therein, herein.

The phrase "rule of thumb" is derived from an old English law whichstated that you couldn't beat your wife with anything wider than yourthumb.

Oral-B is a combination of oral hygiene and the letter B, which stands for the word better.

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