Sentence examples for being invitation from inspiring English sources

These collaborative groups will have more structure than open communities by being invitation only or requiring NDAs and IP agreements for participation.

Ziegler, smirking already, asks: "Based on what?" Security: "Based on this being invitation only".

TED was private, some might say elitist, and attendance, in addition to being invitation only, was costly.

Both parties are invitation only.

* * * "This was invitation enough".

However, it's invitation only for now.

The group is invitation only, by word of mouth.

Events are invitation only.

Wave has been invitation only for half a year.

The late night meeting is "invitation only".

The first is invitation by email.