tighten (v.)

  1. make tight or tighter; Tighten the wire

    [ Syn: fasten ]

  2. become tight or tighter; The rope tightened'

  3. restrict; Tighten the rules; stiffen the regulations

    [ Syn: stiffen , tighten up , constrain ]

  4. narrow or limit; reduce the influx of foreigners

    [ Syn: reduce ]

The dictionary is based on the WordNet Electronic Lexical Database.
WordNet 3.0 Copyright 2011 by Princeton University. All rights reserved.