1. [adverb] Used for forming superlatives of adjectives, especially those that do not form the superlative by adding -est.
2. [adverb] In the smallest or lowest degree; in a degree below all others.
3. [noun] Something that is of no importance; 'it is the least I can do'; 'that is the least of my concerns'.
4. [adverb] Used to form the superlative; 'The garter snake is the least dangerous snake'.
5. [adjective] The superlative of `little' that can be used with mass nouns and is usually preceded by `the'; a quantifier meaning smallest in amount or extent or degree; 'didn't care the least bit'; 'he has the least talent of anyone'.
