Meaning

2 senses
  1. (plural, plural only)The five most difficult and dangerous game animals to hunt in Africa: the African lion, African elephant, Cape buffalo, African leopard, and rhinoceros.

  2. (plural, plural only)The five major extinction events since the beginning of life on Earth.

Forms

plural: big fives
Singularbig five
Pluralbig fives

regular

See also

neighbours in the dictionary
big five — meaning, examples, forms, synonyms | Krumeto