Constrain
Require
Require verb - To have as a requirement.
Mutual synonyms
Common collocations
| characters | constrain characters | require characters |
| magic | constrain magic | require magic |
| player | constrain player | require player |
Both words in one sentence
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Self-Imposed Challenge: Several Achievements require you to deliberately constrain yourself, such as never buying Squad Size upgrades or beating the final mission without upgraded equipment.
Source: Video Game / XCOM 2
Cite this Source
Require and Constrain. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/constrain/require
Constrain & Require. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/constrain/require>.
Require or Constrain. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/constrain/require.
Google Ngram Viewer shows how "constrain" and "require" have occurred on timeline