LEARNit Dictionary
black hole
noun
/ˌblæk ˈhəʊl/
UK
/ˌblæk ˈhəʊl/
US
1
an area in space that nothing, not even light, can escape from, because gravity(= the force that pulls objects in space towards each other) is so strong there
سیاهچاله, چاله سیاه, حفره سیاه