Find out that word, the spelling of which is wrong.

Adambrate
Calibrate
Celebrate
Proliferate

The correct answer is A. Adambrate. The correct spelling is “adamant”.

A. Adambrate is not a word. It is a misspelling of the word “adamant”.

B. Calibrate is a verb meaning to adjust or set something to a standard or correct level.

C. Celebrate is a verb meaning to mark an important event with festivities or a special event.

D. Proliferate is a verb meaning to increase rapidly in number or amount.