Though both under and below are similar in meaning, and can be used interchangeably in some cases, they’re different in the sense that under is used as a preposition, whereas below is an adverb.

GRE and GMAT are both graduate based examinations. The main difference between the two exams is GRE is given to get admission in most graduate schools, whereas GMAT is given to get admission in most business...

In Christianity, a disciple is referred to a student or a follower of Jesus and his teachings, whereas an apostle is referred to an ‘ambassador’ or a ‘preacher’ who helps in spreading Jesus’ teachings and...

Hi and hello are two frequently used forms of greeting. They both are synonymous. However, Hello is regarded to be more formal than Hi.

The words said and told are similar in meaning, but their appropriateness is based on the context that they’re used in.