say it: di-TEN-shuhn
detention is a noun meaning "a state of being confined (usually for a short time)". It carries 2 recorded senses.
a state of being confined (usually for a short time)
“his detention was politically motivated”
“the prisoner is on hold”
“he is in the custody of police”
a punishment in which a student must stay at school after others have gone home
“the detention of tardy pupils”
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 detention 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.