Together
noun, の adjective
One cord is enough to tie you together with someone. Imagine an invisible cord stretching between you and the people you do things together with. That one cord is like a symbol of your togetherness. Very poetic (or very Death Stranding), right?
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own. The 一 becomes いっ.
「ご一緒してもよろしいですか？」「全然、構いませんよ。どうぞお座りください。」
"Do you mind if I join you?" "No, not at all. Please have a seat."