Effect is the result or outcome of a cause. On the other hand, affect is to have an influence on or to alter. It also means to aim for, to act in emotions or to try to obtain.

Grey refers to an intermediate color between black and white. In U.S.A, grey is spelled as gray. Thus, there is no difference between the two.

Inquisitive and curious are synonymous. They are the desires to explore, investigate and draw inferences from the information. However, inquisitive is generally associated with an intelligent curiosity or the...

Secret defines something that is kept hidden in order to remain unseen or unknown to others. Confidential refers to something that is intended to be kept as a secret.

Select and elect are often used interchangeably, referring to choose or pick out from the choices or options. However, elected is specifically related to the selection made on the basis of voting.