This is the 14096th most frequent Spanish word.
tensen
"Tensen" is not a standard Spanish word; it may be a typo or non-existent term.
In this sentence, 'tensen' is used as a command form (negative imperative in third person plural) directed at a group to tighten or increase the tension of something.
Tensen las cuerdas del violín antes de tocar.
Tighten the violin strings before playing.
Here, 'tensen' is used in a subjunctive form to express a hypothetical state concerning maintaining relaxation.
Es importante que no se tensen los músculos durante el ejercicio.
It's important that the muscles don't tense up during exercise.
In this usage, 'tensen' represents a conjunctive action to describe a potential development in the mood or environment state.