Englishfor English speakers
official
Adjective
—
Something that is official is approved by some authority.
The letter was an official document from the president.
official
Noun
—
An official is a person who has certain authority.
That government official collects taxes.
edition
Noun
—
An edition of a book, computer program, etc. is a copy that has been or will be published with changes or in another form.
It was first published in 1857, with a second slightly amended edition in 1858.
The new paperback edition of the dictionary is coming out next week.
The author corrected it in later editions.