How to spell SUBJOINN correctly?

The correct spelling for "subjoinn" could be "subjoin" or "subjoins". The addition of an extra "n" may have been a typographical error. It is important to double-check spelling before submitting written work to avoid errors and confusion.

• sub join
• subjoin I would like to subjoin an additional document to the proposal.
• subjoins He subjoins his signature at the bottom of the email to signify his agreement with the content.

Asing

• acing
• aging
• aping
• arcing
• ask in
• asking
• assign
• assn
• awing
• axing