1. Unencrypted text or data that is readable and understandable without decryption
The message was sent in plaintext without any encryption.
A mensagem foi enviada em texto claro sem nenhuma criptografia.
2. Written or spoken language that is clear, simple, and easy to understand
The instructions were written in plain text to avoid confusion.
As instruções foram escritas em texto claro para evitar confusão.