ಉದಾಹರಣೆ : Let us say that he did not tell the truth.
Let's say you had a lot of money--what would you do?.

ಸಮಾನಾರ್ಥಕ : say

ಉದಾಹರಣೆ : 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.

ಸಮಾನಾರ್ಥಕ : guess, imagine, opine, reckon, think

ಉದಾಹರಣೆ : Scientists supposed that large dinosaurs lived in swamps.

ಸಮಾನಾರ್ಥಕ : conjecture, hypothecate, hypothesise, hypothesize, speculate, theorise, theorize

ಉದಾಹರಣೆ : I presuppose that you have done your work.

ಸಮಾನಾರ್ಥಕ : presuppose

ಉದಾಹರಣೆ : This step presupposes two prior ones.

ಸಮಾನಾರ್ಥಕ : presuppose