The LOT (of) is a phrase that is used to refer to a large amount or quantity of something. It can be used to describe a group of people, objects, or ideas. The three letter crossword solutions for this term are ALL, LOT, and THE. All is an indefinite pronoun that is used to refer to the whole of a group or collection. LOT is a noun that is used to refer to a large number or quantity of people or things. The is a definite article that is used to refer to a specific person, place, or thing.