51:14

[And will be told], “Taste your torment. This is that for which you were impatient.”
Meaning:-
Torment: suffering, torture, pain, severe physical or mental suffering.

51:16

joyfully receiving what their Lord shall give them; for they were before that (during their life on earth) righteous people,
Meaning:-
Righteous: (of a person or conduct) morally right or justifiable; virtuous, very good; excellent.

51:26

Then he went to his family and came with a fat [roasted] calf
Meaning:-
Calf: a young bovine (bovine means: bull, ox or cow ) animal, especially a domestic cow or bull in its first year.

51:28

When he saw them not eating, he became afraid of them. They said: “Have no fear,” and they gave him good news of a son endowed with knowledge.
Meaning:-
Endow: to furnish, as with some talent.

51:44

but they disobeyed the commandment of their Lord; consequently they were overtaken by the thunderbolt even while they were looking on.
Meaning:-
Thunderbolt: a flash of lightning with a simultaneous crash of thunder.

51:59

Surely those who are wrongdoers, shall have their portion of torment similar to the portion of their predecessors; so let them not challenge Me to hurry it on.
Meaning:-
wrongdoers: criminal, a person who behaves illegally, or dishonestly; an offender.
Torment: severe physical or mental suffering.
Predecessors: an ancestor; forefather.