Définitions
1.AdjectiveChiefly preceded by the: superlative form of little: most little."least common multiple; least weasel"
2.AdjectiveChiefly used with abstract nouns: less than all others in extent or size; littlest, smallest."least common multiple; least weasel"
3.AdjectiveOf two or more animals or plants with the same name: the smaller or smallest."least weasel"
4.AdjectiveLowest in importance or status; most insignificant or unimportant.
5.AdjectiveFollowed by an agent noun: of a person: who does some action to the smallest degree.
6.DeterminerChiefly preceded by the: superlative form of little: most little.
Smallest in amount or extent."He earns the least money in his family.; Of all the sisters, she has the least patience.; Whichever queue contains the least items by the time this logic branch is reached will be executed first.; not even the least amount; It is indicative of his true character that he could not manage to show even the least bit of courtesy in such a situation."
7.DeterminerSmallest in amount or extent."He earns the least money in his family.; Of all the sisters, she has the least patience."
8.DeterminerFollowed by a plural noun: the smallest number of; the fewest."Whichever queue contains the least items by the time this logic branch is reached will be executed first."
9.DeterminerAny, no matter how small in amount or extent."not even the least amount; It is indicative of his true character that he could not manage to show even the least bit of courtesy in such a situation."
10.AdverbIn a degree below all others; in the lowest or smallest degree."My best routine was the one I had practised the least.; I don’t much like housework, and doing the dishes least of all.; That decision rewards those who least deserve it."
11.AdverbUsed to form superlatives of adjectives, especially those that do not form the superlative by adding -est."It was the least surprising thing."
12.NounPreceded by the: superlative form of little: most little; the lowest-ranking or most insignificant person or group of people."even the least of; The pastor preached that even the least of God’s creatures deserves freedom from needless or idle cruelty."
13.NounSomething of the smallest possible extent; an indivisible unit; a minimum.
14.PronounChiefly preceded by the: superlative form of little: most little; the smallest amount or extent of something."I’m giving least of all towards her present."
15.Prepositional phraseAt least.