1) Become tight or as if tight 2) Cause to contract 3) Compress 4) Constrict 5) Narrow 6) Tighten 7) To constrict 8) To tighten 
to draw together; to cause to contract or shrink
• (v. t.) To dawn together; to contract; to force to contract itself; to constrict; to cause to shrink.
Con·stringe' transitive verb [ imperfect & past participle Constringed ; present participle & verbal noun Constringing .] [ Latin constringere . See onstrain .] To dawn together; to contract; to force to contract itself; to...
to constrict; compress; cause to contract.