im ‧ pris ‧ on ‧ ment /ɪmˈprɪz ə nmənt/ BrE AmE noun [uncountable]
[ Word Family: noun : ↑ prison , ↑ prisoner , ↑ imprisonment ; verb : ↑ imprison ; adjective : imprisonable]
the state of being in prison, or the time someone spends there:
They were sentenced to 6 years’ imprisonment.
life imprisonment