A rectangle or a rectangular object.

आयत

English Usage: The garden had a beautiful rect-shaped flower bed.

Hindi Usage: बगीचे में एक सुंदर आयताकार फूलों का बगीचा था।

Correct or right, as in moral or ethical standards.

सही

English Usage: It was rect to help those in need.

Hindi Usage: जरूरतमंदों की मदद करना सही था।

To rectify; to correct or make right.

सुधारना

English Usage: He needed to rect his mistakes to move on.

Hindi Usage: उसे आगे बढ़ने के लिए अपनी गलतियों को सुधारना था।