ES tensarse
volume_up
{verb}

tensarse (also: mecerse)
volume_up
to ripple {v.i.} (move)
tensarse
volume_up
to tauten {v.i.} (rope, muscles)
tensarse (also: ponerse tenso)
tensarse
volume_up
to tighten {v.i.} (muscles)
tensarse (also: ponerse tenso)
volume_up
to tighten up {vb} (muscles)

Synonyms (Spanish) for "tensar":

tensar