It seems ironic to be defining the term 'dictionary,' but here we go! Dictionaries are resources for finding word meanings, parts of speech, word origins and even synonyms and antonyms. Dictionaries have definitely evolved over the years. The English language really began with the Anglo-Saxons in Great Britain.
If it is a US Passport, that it is the 9 digit number located in the top corner of the passport info page. In the example below the passport number is 31195855. Other Countries have different types of numbers (usually with letters added) but most often it's in the same place. This Canadian Passport number is AB504966.
I am about to travel. However, I need to renew my passport. Will the new one have the same number as the old passport? When renewing your passport, please note that the number assigned to a particular passport is for that document only. Upon renewal, your new passport will have a different number. It is, therefore, recommended that you plan ahead if you intend to travel soon or apply for a visa as your passport number is required for the visa-application process.