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1. Used to form the superlative
   "the king cobra is the most dangerous snake"
   - to the highest degree
    
2. Very
   "a most welcome relief"
    
3. (of actions or states) slightly short of or not quite accomplished; all but
   "most everyone agrees"
   - about, almost, nearly, near, nigh, virtually, well-nigh, all but

1. (superlative of 'many' used with count nouns and often preceded by 'the') quantifier meaning the greatest in number
   "who has the most apples?"; "most people like eggs"; "most fishes have fins"
    
2. The superlative of 'much' that can be used with mass nouns and is usually preceded by 'the'; a quantifier meaning the greatest in amount or extent or degree
   "made the most money he could"; "what attracts the most attention?"; "made the most of a bad deal"

See also: mostly

Antonym: fewest, least

Encyclopedia: Most Most, Czech Republic Most, Khovd