IPA: /trɪˈmɛndəs/
KK: /trɪˈmɛndəs/
Very large or great in size, amount, or degree; also used to describe something wonderful or impressive.
The concert was a tremendous success, attracting thousands of fans.
Tremendous → It is formed from "tremere" (meaning to tremble) and the suffix "-dous" (indicating a quality or state). The word "tremendous" originally described something that causes trembling or awe, hence something very large or impressive.
Think of something that makes you 'tremble' ('tremere') because it is so large or impressive — that's why we use 'tremendous' to describe something extraordinary.