The contract was signed by both first and second parties.

The first parties arrived at the venue early.

The contract prohibits the sharing of confidential information with 3rd parties.

Many 3d parties attended the conference.

The 2nd parties were invited to the conference.

The 2d parties were invited to the conference.

We had a lot of fun at the pyjama parties.

The pig parties were a huge success.

Chickenpox parties are controversial events where children are intentionally exposed to the virus in order to contract the disease.

We need to involve third-parties in the decision-making process.