DictionaryrestrictionLimit on what is allowed
noun

restriction

rih-STRIK-shuhn/rɪˈstrɪkʃn/

A limit on what can be done or allowed.

The height restriction stops the tall truck while allowing the small car through.

A height-limit barrier prevents a tall truck entering a low tunnel while a small car passes safely, no written labels or numbers.
Etymology

The underlying image is binding something tight or holding it back. This physical restraint became a general idea of limitation, including a rule that holds actions within permitted bounds.

In context

ColumbiaLearn19:33
common legitimate restriction to freedom of expression that is referred to as incitement speech and as hate speech
MOOC FOE1x | 3.7.1 Incitement and Hate Speech - Part 2 | Legitimate Restrictions to FoE

More examples

  • Is there an age restriction for this contest?
  • Her doctor lifts the restriction on exercise.
  • This ticket comes with restrictions on refunds and exchanges.

Forms

restriction · restrictions

restrict verb — To limit what someone can do.

restrictive adjective — Limiting what people can do freely.

Similar words

limit
Can mark a maximum amount rather than something forbidden.
constraint
Often limits choices through practical circumstances rather than explicit rules.