tone
tone (tono)
the author's attitude toward the subject or the reader, shown through word choice.
Example
We deeply regret the delay and thank you for your patience. (The tone is apologetic.)
In Spanish
tone (tono) — la actitud del autor hacia el tema o el lector, que se nota en las palabras que elige.
We deeply regret the delay and thank you for your patience. (El tono es de disculpa.)