English verb: tighten up | |||
1. | tighten up (change) restrict | ||
Samples | Tighten the rules. Stiffen the regulations. | ||
Synonyms | constrain, stiffen, tighten | ||
Pattern of use | Somebody ----s something | ||
Broader (hypernym) | bound, confine, limit, restrain, restrict, throttle, trammel | ||