Since tension has different meanings in English there is no real answer.
The following link does cover all possible translations (ordered by usage).
(An-) Spannung would be a possible translation for most circumstances.
How do you say "War" In german? Answer: "Krieg"
Tranianieren is how you say practice in German.
To say body in German it is Körper
How do i say i have a brother and a sister in German ?
In order to say "My eyes" in German you say meine Augen
to say Rosie in German you say Rosie :) i like pie
The German word for what is was.
Say that in German = Sag es auf Deutsch (informal) Say that in German = Sagen Sie es auf Deutsch (formal)
if you mean how do you say deep IN German then its "tief"
How do you say "The Angel of Death" in German?