5.
give up in the face of defeat of lacking hope; admit defeat
In the second round, the challenger gave up;
Synonyms:
['drop_out', 'give_up', 'fall_by_the_wayside', 'drop_by_the_wayside', 'throw_in', 'throw_in_the_towel', 'chuck_up_the_sponge']
Antonyms:
['enter']