crikey

As an interjection crikey

is used as an exclamation of astonishment, or as an emphasis of fact at the conclusion of a statement.

As an adjective false is

(label) one of two states of a boolean variable; logic.

As a noun taxonomy

is the science or the technique used to make a classification.

As an interjection crikey is

used as an exclamation of astonishment, or as an emphasis of fact at the conclusion of a statement.