Learn how to say Adjoining correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word adjoin:
be next to and joined with (a building, room, or piece of land):
the dining room adjoins a conservatory
archaic or technical add or join something to:
to them were adjoined branches of trees
Middle English: from Old French ajoindre, from Latin adjungere, from ad- ‘to’ + jungere ‘to join’