If something freezes up or if something freezes it up, it becomes completely covered or blocked with ice. lavatories that often freeze up in winter Ice could freeze up their torpedo release mechanisms. = ice up
freeze up
التركية النطق
friz ʌp
النطق
/ˈfrēz ˈəp/ /ˈfriːz ˈʌp/
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[ 'frEz ] (verb.) before 12th century. Middle English fresen, from Old English frEosan; akin to Old High German friosan to freeze, Latin pruina hoarfrost, Old English frost frost.