say it: kuhn-STRAYNT
constraint is a noun meaning "the state of being physically constrained". It carries 3 recorded senses.
the state of being physically constrained
“dogs should be kept under restraint”
the act of constraining; the threat or use of force to control the thoughts or behavior of others
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for constraint come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.