What do you mean by complications on the Apple Watch App?

No, it is complications.

See the following from Customize the watch face - Apple Support

You can add special features—called complications—to some watch faces, so you can instantly check things like stock prices, the weather report, or information from other apps you installed.

And the following link list available complications for various watch faces: Apple Watch faces and their features - Apple Support

Victorwol wrote:

What do you mean by complications on the Apple Watch App? is that a typo? what is a complication? I think it should say application.

An Apple Watch can have both applications and complications. Some applications add complications to the watch.

See these articles:

Customize the watch face - Apple Support

Apple Watch faces and their features - Apple Support

Edit: Fox beat me to it again! 😉

A complication is the day, date, moon phase etc. Something which isn’t the time.

Complication (horology) - Wikipedia