As a noun:
* The museum's archive contains thousands of historical documents.
* She spent the afternoon browsing the archives of her family's old photo albums.
* The archive of his emails was accidentally deleted.
As a verb:
* The library archives all of its historical records.
* The company archived the old files onto a backup server.
* He archived his research papers so he could easily find them later.
In different contexts:
* The government archived all of the classified documents.
* The website archived the old content for historical purposes.
* He spent years trying to access the secret archives of the organization.
The specific use of the word "archive" will depend on the context of your sentence.