# restrict

Pronunciation: US say "ri-STRIKT" /ɹɪˈstɹɪkt/; UK

## Verb

1. To hold something within set boundaries; to limit or confine it.
   - Simple: To keep something within limits, or to stop it from spreading too far.
   - _The city restricts parking on these streets during snowstorms._
   - _Strict visa policies restrict how long visitors may stay._
2. To treat a function as defined only on a smaller part of its original domain.
   - Simple: To look at a math function using only part of the values it normally works with.
   - _Mathematicians often restrict a function to an interval where it is one-to-one._
   - _When we restrict the mapping to the unit circle, its behavior becomes simpler._

## Adjective

3. Held within bounds; limited or confined. *(obsolete)*
   - Simple: Kept within limits and not free to move or spread.

## Origin

Borrowed from Latin restrictus, the past participle of restringō ('draw back tightly; restrain'), formed from re- ('back, again') plus stringō ('press, tighten, compress').

Source: DictionaryAI, https://dictionaryai.com/define/restrict (written from Wiktionary data, CC BY-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0/).