Alot is a verb meaning to distribute. Advise is a verb meaning to counsel. I would advise you to read your papers carefully. Illude is not a word. Backward and backwards mean the same thing and either one can be used.
Compliment means to praise.
Criteria is the plural of criterion just as phenomena is the plural of phenomenon. Dessert is eaten after a meal. Emigrate means to leave a country. Immigrate means to enter a country. Flammable and inflammable mean the same thing.