die out

US /daɪ aʊt/

UK /daɪ aʊt/

1.

to become extinct or disappear completely

:

•

Many species of animals are dying out due to habitat loss.

•

Old traditions often die out as new generations emerge.

:

vanish perish fade away become obsolete cease to exist

:

die to die for die down die away the die is cast do or die out-and-out