A different word for "One Thing In Common"?

Question

if there is, a single word, that is more professional and used on academic work or everywhere else where good English is written with proper grammar. > E.g. They got one thing in common. E.g. They have one common shared foundation. > I am not sure I am conveying my message in a way that matters. Thanks. > They have one thing in common—*the user experience*. **Edit:** There's absolutely nothing wrong with the last example I added, grammatically speaking.

Answer 1

The first question appears to be which is correct: "They got one thing in common" or "They have one common shared foundation" or "They have one thing in common—the user experience?" The second question appears to be, "although 'They have one thing in common—the user experience,' what is the better choice of words?"

"They got one thing in common" is simply grammatically incorrect. Got is the past tense of get, not have. However, "They have one common shared foundation" is also grammatically incorrect because "common shared" means shared shared or common common and is redundant.

"They have one thing in common—the user experience" is indeed grammatically correct. However, better style is "They share the same user experience."