suppose in WordNet English dictionary

1. to believe especially on uncertain or tentative grounds
   "Scientists supposed that large dinosaurs lived in swamps"
   speculate  theorize  theorise  conjecture  hypothesize  hypothesise  hypothecate  suppose 
   
2. expect, believe, or suppose
   "I imagine she earned a lot of money with her new novel"; "I thought to find her in a bad state"; "he didn't think to find her in the kitchen"; "I guess she is angry at me for standing her up"
   think  opine  suppose  imagine  reckon  guess 
   
3. require as a necessary antecedent or precondition
   "This step presupposes two prior ones"
   presuppose  suppose 
   
4. take for granted or as a given; suppose beforehand
   "I presuppose that you have done your work"
   presuppose  suppose 
   
5. express a supposition
   "Let us say that he did not tell the truth"; "Let's say you had a lot of money--what would you do?"
   suppose  say