de tous les

listen to the pronunciation of de tous les
الفرنسية - الإنجليزية
of all

He is the tallest of all boys. - C'est le plus grand de tous les garçons.

Money is the root of all evil. - L'argent est la racine de tous les maux.

Used as an intensifier with nouns to denote being ultimate
Used as an intensifier with superlative forms of adjectives

He was the greatest playwright of all.

See: 'of all people'