Tighten example sentences

As colonial control over Indian trade tightened, the space within which Indian merchants could function became increasingly limited.But, crossed arms accompanied by an erect posture, tightened body muscles, a set clenched jaw, and narrowing of the eyes are likely to communicate anger.The word stress has its origin in the Latin words 'strictus', meaning tight or narrow and 'stringere', the verb meaning to tighten.