#### Answer

According to Merriam-Webster (m-w.com), the definition of "trillion" is "a number equal to 1,000 times one billion." To write that in standard form, it is 1,000,000,000,000.

#### Work Step by Step

Find a reputable dictionary (Merriam Webster is best) and copy the definition. Next, write 1 followed by 12 zeroes.