Alot This word does not exist. It is often mistakenly written instead of “a lot”. I know alot about precious stones. I know a lot about precious stones.
A lot The term ‘a lot’ is the opposite of ‘a little’. As an noun , ‘lot’ means a large extent, a large amount or a large number. As an adverb , ‘lot’ means ‘to a great extent’ or ‘to a great degree’. It nearly always appears in the form ‘a lot’. Mark has a lot of toys. (Lot is a noun in this example.) He cheats a lot. (Lot is an adverb in this example.)
Allot The verb ‘to allot’ means ‘to give out’, ‘to apportion’, ‘to divide’ or ‘to distribute’. (Other forms of the verb are allots, allotted and allotting.) The peasant was allotted just 25m2 to grow his monster pumpkins. I will allot a radio to each group. You need to allot each syndicate sufficient time to question the presenter.